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1. general description the tja1086 is a flexray active star couple r that connects two branches of a flexray network. the tja1086 is compliant with the fl exray electrical physical layer specification v3.0.1 (see ref. 1 ). several tja1085 and tja1086 devices can be connected via their trxd0/1 interfaces to increase the number of branches in the network. a dedicated communication controller (cc) interface allows for in tegration into an ecu. the tja1086 supports low-power management by offering bus wake-up capability along with battery supply and voltage regulator control. the tja1086 meets industry standards for emc/esd performance and provides enhanced bus error detection, low current consumption and unmatched asymmetric delay performance. the tja1086 also fulfills the jaspar requ irements as defined by the japanese car industry. 2. features and benefits 2.1 general ? compliant with flexray electrical ph ysical layer specification v3.0.1. ? fulfills jaspar requirements ? automotive product qualificatio n in accordance with aec-q100 ? data transfer rates from 2.5 mbit/s to 10 mbit/s ? supports 60 ns minimum bit time at 400 mv differential voltage ? low-power management for battery-supplied ecus ? very low current consumption in as_sleep mode ? leadless hvqfn44 package with improved automated optical inspection (aoi) capability 2.2 functional ? supports autonomous active star operation independent of the host ensuring the tja1086 remains active even if t he host fails or is switched off ? branches can be independently configured ? branch extension via trxd0/1 inner star interface ? 16-bit bidirectional spi interface up to 2 mbit/s for host communication ? full host control over branch status ? enhanced wake-up capability: ? remote wake-up via wake-up pattern and dedicated flexray data frames tja1086 flexray active star coupler rev. 1 ? 18 april 2013 product data sheet
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 2 of 62 nxp semiconductors tja1086 flexray active star coupler ? local wake-up via pin lwu ? wake-up source recognition ? configurable per branch ? enhanced supply voltage monitoring on v io , v cc , v buf and v bat ? auto i/o level adaptation to host controller supply voltage v io ? can be used in 14 v, 24 v and 48 v powered systems ? enhanced bus error detection - detects short-circuit conditions on the bus ? instant transmitter shut-down interface (bge pin) ? selective branch shut-down (partial networking) 2.3 robustness ? bus pins protected against ? 8 kv esd pulses according to hbm and ? 6 kv esd pulses according to iec61000-4-2 ? all pins protected against ? 1000 v esd according to cdm ? all pins protected against ? 200 v esd according to mm ? no reverse currents from the digital input pins to v io or v cc when the tja1086 is not powered up ? bus pins short-circuit proof to battery voltage (14 v, 24 v or 48 v) and ground ? overtemperature detection and protection ? bus pins protected against transients in automotive environment (according to iso 7637 class c) 2.4 active star functional classes ? active star - communication controller interface ? active star - bus guardian interface ? active star - voltage regulator control ? active star - logic level adaptation ? active star - host interface ? active star - increased vo ltage amplitude transmitter 3. ordering information table 1. ordering information type number package name description version TJA1086HN hvqfn44 plastic thermal enhanced very th in quad flat package; no leads; 44 terminals; body 9 ? 9 ? 0.85 mm sot1113-1
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 3 of 62 nxp semiconductors tja1086 flexray active star coupler 4. block diagram fig 1. block diagram v cc1 v cc2 v bat v io 71 7 3 4 22 015aaa430 19 gnd2 v buf1 v buf2 35 21 state machine routing spi scsn 1 sclk 2 sdi 3 sdo 4 lwu 16 trxd1 13 trxd0 12 bge 8 txen 10 txd 9 rxd 11 & inh 15 intn 5 rstn 44 37 gnd1 6 gndd bp_1 bm_1 33 32 wake-up bus error transmitter receiver bp_2 bm_2 30 29 wake-up bus error transmitter receiver tja1086
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 4 of 62 nxp semiconductors tja1086 flexray active star coupler 5. pinning information 5.1 pinning 5.2 pin description fig 2. pin configuration 015aaa429 tja1086 transparent top view 1scsn 2sclk 3sdi 4sdo 5intn 6gndd 7v io 8bge 9txd 10 txen 11 rxd bp_1 33 bm_1 32 n.c. 31 bp_2 30 bm_2 29 n.c. 28 n.c. 27 n.c. 26 n.c. 25 n.c. 24 n.c. 23 12 trxd0 13 trxd1 14 n.c. 15 inh 16 lwu 17 v bat 18 n.c. 19gnd2 20 n.c. 21 v buf2 22 v cc2 rstn 44 res1 43 res2 42 res3 41 res4 40 res5 39 res6 38 gnd1 37 n.c. 36 v buf1 35 v cc1 34 table 2. pin description symbol pin type [1] description scsn 1 i spi chip select input; internal pull-up sclk 2 i spi clock signal; internal pull-down sdi 3 i spi data input; internal pull-down sdo 4 o spi data output; 3-state output intn 5 o interrupt output; open-dr ain output, low-side driver gndd 6 g ground for digital circuits [2] v io 7 p supply voltage for v io voltage level adaptation bge 8 i bus guardian enable input; internal pull-down txd 9 i transmit data input; internal pull-down txen 10 i transmitter enable input; internal pull-up rxd 11 o receive data output trxd0 12 io data bus line 0 for inner star connection trxd1 13 io data bus line 1 for inner star connection n.c. 14 - not connected; to be connected to gnd in application inh 15 o inhibit output; for switching external voltage regulator
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 5 of 62 nxp semiconductors tja1086 flexray active star coupler [1] io: input/output; o: output; i: input; p: power supply; g: ground. [2] gnd1, gnd2, gndd and the exposed center pad of hvqfn44 package must be connected together on the pcb; references in the data sheet to gnd can be assumed to encompass gnd1, gnd2, gndd and the exposed center pad of hvqfn4 unless stated otherwise. [3] v buf1 and v buf2 must be connected together on the pcb; note that references in the data sheet to v buf can be assumed to encompass v buf1 and v buf2 unless stated otherwise. [4] v cc1 and v cc2 must be connected together on the pcb; note that references in the data sheet to v cc can be assumed to encompass v cc1 and v cc2 unless stated otherwise. [5] references in the data sheet to bm (e.g. pin bm or v bm ) can be assumed to encompass bm_1 and bm_2 unless stated otherwise. [6] references in the data sheet to bp (e.g. pin bp or v bp ) can be assumed to encompass bp_1 and bp_2 unless stated otherwise. lwu 16 i local wake-up input; internal pull-up or pull-down (depends on voltage at pin lwu) v bat 17 p battery supply voltage n.c. 18 - not connected; to be connected to gnd in application gnd2 19 g ground connection 2 [2] n.c. 20 - not connected; to be connected to gnd in application v buf2 21 p buffer supply voltage 2 [3] v cc2 22 p supply voltage 2 [4] n.c. 23 - not connected; to be left open in the application n.c. 24 - not connected; to be left open in the application n.c. 25 - not connected; to be connected to gnd in application n.c. 26 - not connected; to be left open in the application n.c. 27 - not connected; to be left open in the application n.c. 28 - not connected; to be connected to gnd in application bm_2 29 io bus line minus for branch 2 [5] bp_2 30 io bus line plus for branch 2 [6] n.c. 31 - not connected; to be connected to gnd in application bm_1 32 io bus line minus for branch 1 [5] bp_1 33 io bus line plus for branch 1 [6] v cc1 34 p supply voltage 1 [4] v buf1 35 p buffer supply voltage 1 [3] n.c. 36 - not connected; to be connected to gnd in application gnd1 37 g ground connection 1 [2] res6 38 - reserved; to be connected to gnd in application res5 39 - reserved; to be connected to gnd in application res4 40 - reserved; to be connected to gnd in application res3 41 - reserved; to be connected to gnd in application res2 42 - reserved; to be connected to gnd in application res1 43 - reserved; to be connected to gnd in application rstn 44 i reset input; internal pull-up table 2. pin description ?continued symbol pin type [1] description
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 6 of 62 nxp semiconductors tja1086 flexray active star coupler 6. functional description 6.1 supply voltage the tja1086 state machine is adequate ly supplied if at least one of v bat , v cc or v buf is available. the internal supply voltage to the state machine is denoted by v dig . v buf is an auxiliary supply and is only needed for forwarding the wake-up pattern when v cc is not available. 6.2 host control (hc) and autonomous power (ap) modes - apm flag the apm flag determines whether the tja108 6 is host-controlled or is operating in autonomous power mode. it is in ap mode by default. the tja1086 sets the apm flag: ? at power-on ? when a wake-up event is detected (on txrd0/1, local or remote) ? when a v cc undervoltage event is detected in as_normal mode ? when a v io undervoltage event lasts longer than t to(uvd)(vio) the host can set or reset the apm flag at any time. 6.3 signal router the signal router transfers data received on an input channel to all channels configured as outputs. if data is being received on more t han one input channel at the same time, the channel that was first to signal activity is selected and data on the other channel/s is ignored. whether or not the data on an out put channel is transmitted depends on whether the output channel is enabled or disabled. the tja1086 contains the following data input channels: ? branches 1 and 2 ? trxd0/1 interface (inner star interface) ? txd/txen interface the tja1086 contains the fo llowing data output channels: ? branches 1 and 2 ? trxd0/1 interface ? rxd pin 6.3.1 trxd collision when the trxd0/1 interface is configured as an output channel, a trxd collision is detected (coll_trxd = 1) if pins trxd0 and trxd1 are both low for longer than t det(col)(trxd) , generating a clamp_error interrupt. when a trxd collision is detected, the tja1086 transmits a data_0 to all other active output channels (irrespective of the actual dat a on the selected input channel), until the selected input channel detects idle state.
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 7 of 62 nxp semiconductors tja1086 flexray active star coupler 6.4 wake-up the tja1086 supports the following wake-up mechanisms: ? remote wake-up via the bus (wake-up pattern or dedicated wake-up frame) ? local wake-up via pin lwu ? activity on the inner star interface (pins trxd0 and trxd1) any wake-up event will generat e a wu interrupt. a remote wake-up on a branch will generate an event_brx interrupt to indicate the branch where the wake-up pattern or dedicated data frame was detected. the host can identify the wake-up source by polling the genera l status register (wu_trxd = 1 for a trxd0/1 wake-up; wu_local = 1 for a local wake-up) and the branch status register (wu_brx = 1 for a remote wake-up). 6.4.1 remote wake-up when the tja1086 is in as_standby or as_ sleep, both branches are monitored for wake-up events. when a valid wake-up pattern or data frame is detected on one of the branches, the relevant wu_brx status bit is set and the wake-up pattern/data frame is forwarded to the other branch (if enabled). a remote wake-up event occurring during an as_normal-to-as_standby or as_normal-to-as_sleep transition will also be detected, setting the relevant wu_brx status bit and generating wu and event_brx interrupts. 6.4.1.1 bus wake-up via wake-up pattern a wake-up pattern consists of at least tw o consecutive wake-up symbols. a wake-up symbol consists of a data_0 phase lasting longer than t det(wake)data_0 , followed by an idle phase lasting longer than t det(wake)idle , provided both wake-up symbols occur within a time span of t det(wake)tot (see figure 3 ). the transceiver also wakes up if the idle phases are replaced by data_1 phases. a wake-up event is not detected if an in valid wake-up pattern is received. see ref. 1 for more details on inva lid wake-up patterns.
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 8 of 62 nxp semiconductors tja1086 flexray active star coupler see ref. 1 for more details of the wake-up mechanism. 6.4.1.2 bus wake-up via dedicated flexray data frame the tja1086 detects a wake-up event when a dedicated data frame emulating a valid wake-up pattern, as shown in figure 4 , is received. the data_0 and data_1 phases of the emulated wake-up symbol are interrupted by the byte start sequence (bss) preceding each byte in the data frame. with a data rate of 10 mbit/s, the interruption has a maximum duration of 130 ns and does not prevent the transceiver from recognizing the wake-up pattern in the payload. for longer interruptions at lo wer data rates (5 mbit/s and 2.5 mbit/s), the wake-up pattern should be used (see section 6.4.1.1 ). fig 3. bus wake-up timing 0 v dif (mv) 0 -500 > t det(wake)data_0 > t det(wake)idle > t det(wake)idle > t det(wake)data_0 > t det(wake)data_0 > t det(wake)data_0 > t det(wake)idle > t det(wake)idle wake-up +500 015aaa007 0 -500 < t det(wake)tot wake-up pattern wake-up symbol wake-up symbol
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 9 of 62 nxp semiconductors tja1086 flexray active star coupler 6.4.2 local wake-up via pin lwu local wake-up is detected when the voltage on pin lwu is lower than v th(wake)(lwu) for longer than t det(wake)(lwu) (falling edge on pin lwu). when local wake-up is detected, the wu_local status bit is set and a wu interrupt is generated. at the same time, the internal biasing of this pi n is switched to pull-down. if the voltage on pin lwu rises and remains above v th(wake)(lwu) for longer than t det(wake)(lwu) (rising edge on pin lwu), local wake-up is not detected and the biasing on pin lwu is switched to pull-up. 6.4.3 wake-up via the trxd0/1 interface if the voltage on pin trxd0 or pin trxd1 is low for longer than t det(wake)(trxd) , a wu interrupt is generated and the wu_trxd status bit is set. the duration of each interruption is 130 ns. the transition time from data_0 to data_1 and vice versa is about 20 ns. the tja1086 wake-up flag is set on receipt of the following frame payload: 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff fig 4. minimum bus pattern for bus wake-up via dedicated flexray data frame 015aaa343 v dif 0 v -2000 wake-up +2000 870 ns 870 ns 870 ns 870 ns 770 ns 130 ns 130 ns 130 ns 5 s 5 s 5 s 5 s fig 5. local wake-up timing on pin lwu 015aaa178 v bat v bat inh 0 v 0 v lwu t det(wake)(lwu) pull-up pull-up t det(wake)(lwu) pull-down t d(lwuwake-inhh)
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 10 of 62 nxp semiconductors tja1086 flexray active star coupler 6.5 communication controller interface 6.5.1 bus activity and idle detection the following mechanisms for acti vity and idle detection are valid in normal power modes: ? if the absolute differential voltage on the bus lines is higher than ? v i(dif)det(act) ? for t det(act)(bus) , activity is detected on the bus lines ? if, after bus activity detection, the different ial voltage on the bus lines is higher than v ih(dif) , pin rxd will go high ? if, after bus activity detection, the different ial voltage on the bus lines is lower than v il(dif) , pin rxd will go low ? if the absolute differential voltage on the bus lines is lower than ? v i(dif)det(act) ? for t det(idle)(bus) , then idle is detected on the bus lines (pin rx d is switched high or remains high) additionally, activity and idle can be detected: ? if pin txen is low for longer than t det(act)(txen) , activity is detected on pin txen ? if pin txen is high for longer than t det(idle)(txen) , idle is detected on pin txen ? if pin trxd0 or trxd1 is low for longer than t det(act)(trxd) , activity is detected on the trxd0/1 interface ? if pins trxd0 and trxd1 are both high for longer than t det(idle)(trxd) , idle is detected on the trxd0/1 interface [1] the transmitter is activated by a falling edge on pin txd while txen is low and bge is high. [2] internal pull-up resistor (r pu ) to v buf . [3] bp and bm biased to gnd. table 3. transmitter input signals: txd, txen and bge [1] txd txen bge v io uv detected rxd bus trxd0 trxd1 operating mode x h x no high idle high ohmic [2] high ohmic [2] as_normal x x l no high idle high ohmic [2] high ohmic [2] as_normal l l h no low data_0 low high ohmic [2] as_normal h l h no high data_1 high ohmic [2] low as_normal x x x no high idle high ohmic [2] high ohmic [2] as_standby, [3] as_sleep [3] x x x yes low idle high ohmic [2] high ohmic [2] as_normal, as_standby, [3] as_sleep [3] x x x x high float high ohmic [2] high ohmic [2] as_poweroff, as_reset table 4. bus as input bus v io uv detected rxd trxd0 trxd1 operating mode data_0 no low low high ohmic [1] as_normal data_1 no high high ohmic [1] low as_normal idle no high high ohmic [1] high ohmic [1] as_normal x no high high ohmic [1] high ohmic [1] as_standby, as_sleep
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 11 of 62 nxp semiconductors tja1086 flexray active star coupler [1] internal pull-up resistor (r pu ) to v buf . [1] activity detected on trxd0/trxd1. 6.6 bus error detection the tja1086 provides bus error detection on each branch during data transmission. when a transmit error (txe_b rx = 1) is detected on a branch , an event_brx interrupt is generated to notify the host. the following conditions trigger bus error detection: ? short circuit bp to bm ? short-circuit bp to gnd ? short-circuit bm to gnd ? short-circuit bp to v cc or v bat ? short-circuit bm to v cc or v bat 6.7 interrupt generation interrupts are generated when specific events take place or associated status bits in the general or branch x status registers are set. when an interrupt is generated, the relevant interrupt status bit is set in th e interrupt status register (see ta b l e 9 ) and pin intn is forced low. some interrupt status bi ts (pwon, wu, spi_error and hc_error) are reset immediately after the interrupt status register has been read successfully (i.e. a rising edge on scsn with no spi_error). data_0 yes low low high ohmic [1] as_normal data_1 yes low high ohmic [1] low as_normal idle yes low high ohmic [1] high ohmic [1] as_normal x yes low high ohmic [1] high ohmic [1] as_standby, as_sleep x x high high ohmic [1] high ohmic [1] as_poweroff, as_reset table 5. trxd0/1 interface configured as input trxd0 trxd1 v io uv detected rxd bus operating mode x falling edge no high data_1 as_normal [1] high high no high idle as_normal falling edge x x low data_0 as_normal [1] x falling edge yes low data_1 as_normal [1] high high yes low idle as_normal low low x low data_0 collision detected on trxd0/1 table 4. bus as input bus v io uv detected rxd trxd0 trxd1 operating mode
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 12 of 62 nxp semiconductors tja1086 flexray active star coupler the uv_error, clamp_error, temp_err or and event_brx status bits are reset after the flag (or flags) that triggered the interrupt has been reset and a successful read operation had been performed (these two events can occur in any order). resetting these bits triggers a further falling edge on intn to indicate to the host that the issue that triggered the interrupt has been resolved (e xcept in the case of event_brx if a branch wake-up event triggered the interrupt). see section 6.10.2.3 for further details. intn signaling conforms to the flexray elec trical physical layer specification v3.0.1 (see ref. 1 ). 6.8 operating modes the tja1086 features fi ve operating modes. as_poweroff, as_sleep and as_standby are low-power modes in which the transceiver is unable to transmit or receive data stream s on the bus. in as_ poweroff mode, only power-on reset detection is active. the spi, the low-power receiver and wake-up detection are active in as_sleep mode. undervoltage detection is enabled on v cc , v bat and v buf in as_standby and as_normal modes. v io undervoltage detection is always enabled, except when the tja1086 is in as_poweroff mode. in as_normal mode, the tja1086 can transmit and receive data streams on the bus. pin inh is high in as_normal, as_standby and as_reset, and floating in as_poweroff and as_sleep. the dstargotosleep timer is started when the tja1086 switches to as_standby or as_normal, or when idle is detected on the bus. the timer is halted and reset when activity is detected on the bus. 6.8.1 operating mode transitions 6.8.1.1 as_poweroff the tja1086 switches to as_poweroff from any mode if the internal supply to the state machine, v dig , falls below the po wer-on detection threshold voltage (v th(det)por ). it remains in as_poweroff until v dig rises above the power-on recovery threshold voltage (v th(rec)por ), when it switches to as_standby. pins intn and sdo are switched to a high-impedance state in as_poweroff mode. 6.8.1.2 as_reset the tja1086 switches to as_reset from any mode if pin rstn goes low with no undervoltage detected on v io . it remains in as_reset until pi n rstn goes high, when it switches to as_standby. 6.8.1.3 as_standby the tja1086 switches to as_standby: - from as_poweroff when v dig rises above the power-on recovery threshold voltage (v th(rec)por ) - from as_reset when pin rstn goes high - from as_normal when a v cc undervoltage event is detected (v cc tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 13 of 62 nxp semiconductors tja1086 flexray active star coupler - from as_normal in response to a host ?as_standby? command (hc mode) - from as_sleep in response to a host ?as_standby? command (hc mode) - from as_sleep when a wake-up event is detected the tja1086 switches from as_standby: - to as_normal when a wake-up event is detected, provided v buf > v uvr(vbuf) - to as_normal when a v cc undervoltage recovery event is detected (v cc > v uvr(vcc) for longer than t rec(uv)(vcc) ), provided v buf > v uvr(buf) - to as_normal in resp onse to a host ?as_normal? command (hc mode) - to as_sleep if the dstargotosleep timer expires (ap mode) - to as_sleep if a v cc undervoltage event lasts longer than t to(uvd)(vcc) (hc mode) - to as_sleep in response to a host ?as_sleep? command (hc mode) 6.8.1.4 as_sleep a wake-up event will trigger a transition to as_standby (followed by a transition to as_normal if v buf > v uvr(vbuf) ). the tja1086 switches to as_sleep: - from as_standby in response to a host ?as_sleep? command (hc mode) - from as_standby if the dstargotosleep timer expires (ap mode) - from as_standby if a v cc undervoltage event lasts longer than t to(uvd)(vcc) (hc mode) - from as_normal in response to a host ?as_sleep? command (hc mode) - from as_normal if the dstargotosleep timer expires (ap mode) the tja1086 switches from as_sleep: - to as_standby in response to a host ?as_standby? command (hc mode) - to as_standby when a wake-up event is detected. - to as_normal in resp onse to a host ?as_normal? command (hc mode) 6.8.1.5 as_normal the tja1086 switches to as_normal: - from as_standby if a v cc undervoltage recovery event is detected (v cc > v uvr(vcc) for longer than t rec(uv)(vcc) ), provided v buf > v uvr(buf) - from as_standby if a wake-up event is detected, provided v buf > v uvr(vbuf) for longer than t rec(uv)(vbuf) - from as_standby or as_sleep in response to a host ?as_normal? command the tja1086 switches from as_normal: - to as_standby when a v cc undervoltage event is detected (v cc < v uvd(vcc) for longer than t det(uv)(vcc) )
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 14 of 62 nxp semiconductors tja1086 flexray active star coupler - if the tja1086 is in hc mode, it will switch from as_standby to as_sleep if the v cc undervoltage persists for longer than t to(uvd)(vcc) - if the tja1086 is in ap mode, it will switch to as_slee p when the dstargotosleep timer expires - to as_standby in response to a host ?as_standby? command (hc mode) - to as_sleep in response to a host ?as_sleep? command (hc mode) - to as_sleep if the dstargotosleep timer expires (ap mode)
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 15 of 62 nxp semiconductors tja1086 flexray active star coupler 6.8.1.6 operating mode transition diagram fig 6. mode transition diagram 015aaa170 as_standby as_sleep as_reset as_poweroff from any mode if v dig < v th(det)por v dig > v th(rec)por wake-up event or v cc undervoltage > t to(uvd)(vcc) or host command ('sleep') as_normal host command ('sleep') v cc undervoltage detected or host command ('normal') from any mode if rstn goes low with no v io undervoltage rstn goes high (wake-up event and v buf > v uvr(vbuf) ) or (v cc undervoltage recovery and v buf > v uvr(vbuf) ) dstargotosleep time-out dstargotosleep time-out host command ('standby') host command ('standby') host-control mode only autonomous-control mode only
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 16 of 62 nxp semiconductors tja1086 flexray active star coupler 6.9 branch operating modes each of the two branches in the tja1086 features six branch operating modes: ? branch_off both branches are in branch_off mode w hen the tja1086 is in as_poweroff or as_reset mode. the transmitter, normal receiver, low-power receiver and bus error detection are disabled. the bus pins are floating. ? branch_lowpower both branches are in branch_lowpower mode when the tja1086 is in as_standby or as_sleep mode. the transmitter, the normal receiver and bus error detection are disabled. the low-power receiver is active (i.e. remote wake-up is possible). the bus pins are biased to ground. ? branch_disabled the tja1086 switches to branch_disabled if an overtemperature is detected. the ?branch_disabled? and ?branch_normal? comm ands allow the host to enable/disable a branch without affecting the other branch. the transmitter, normal receiver and bus error detection are disabled. only the low-power receiver is active (remote wake-up is possible). the bus pins are biased to v o(idle)(bp) and v o(idle)(bm) . ? branch_normal when a branch is in branch_normal, the tja1086 will be in as_normal. the transmitter, normal receiver and bus error detection are active. the bus pins are biased to v o(idle)(bp) and v o(idle)(bm) . ? branch_txonly1 in branch_txonly1 mode, the receiver is disabled, i.e. the received data is not forwarded to the signal router. the transmit ter is active and bus error detection is active. the bus pins are biased to v o(idle)(bp) and v o(idle)(bm) . ? branch_txonly2 this mode is host-controlled only and is o perationally identical to branch_txonly1. it allows the host to switch off the receiver in response to error conditions. ? branch_failsilent the transmitter, the low-power receiver and bus error detection are disabled. only the receiver remains active to monitor the branch for idle or activity. received data is not forwarded to the signal router. the bus pins are biased to v o(idle)(bp) and v o(idle)(bm) . 6.9.1 branch operating mode transitions branch-related host commands can only be i ssued when the tja1086 is in as_normal mode. 6.9.1.1 branch_off when the tja1086 enters as_poweroff or as_reset, both branches switch to branch-off. when the tja1086 subsequently switches to as_standby, both branches switch to branch_lowpower. 6.9.1.2 branch_lowpower both branches switch to branch_lowpower when the tja1086 enters as_standby or as_sleep. both branches will re main in this mode until th e tja1086 enters as_normal. when this transition happens, any branch that was in branch_disabled before switching to branch_lowpower w ill return to branch_disabled. otherwise, both branches switch to
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 17 of 62 nxp semiconductors tja1086 flexray active star coupler branch_normal. 6.9.1.3 branch_disabled an overtemperature event (temp_high flag set) triggers a transition from branch_normal to branch_disabled in both branches. if an overtemperature event triggered the transition from branch_normal to branch_disabled, both branches return to branch_normal when the overtemperature problem has been resolved (temp_warn flag reset). the ?branch_disabled? and ?branch_normal? commands can be used to enable/disable individual branches. a host command is also available to trigger a transition from branch_disabled to branch_txonly1 (?branch_txonly'). if a branch switches from branch_disabled to branch_lowpower because the tja1086 has entered as_standby or as_sleep, it w ill return to branch_disabled when the tja1086 enters as_normal. 6.9.1.4 branch_failsilent a branch switches to branch_failsilent: - from branch_normal if a branch is clamped (clamp_brx flag set), provided clamp-detection is enabled (bit clamp_det set; see ta b l e 8 ) - from branch_normal if a transmit error (txe_brx = 1) is detected, provided autonomous error confinement is enabled (bit aec set; see ta b l e 8 ) - from branch_txonly1 if a transmit error (txe_brx = 1) is detected. the branch remains in branch_failsilent until id le is detected on both branches, when it switches to branch_txonly1 (a ?branch_txonly? command is needed in hc mode). 6.9.1.5 branch_txonly1 a branch switches to branch_txonly1: - from branch_disabled in response to a ?branch_txonly? command (hc mode) - from branch_failsilent in response to a ?branch_txonly? command when both branches are idle (hc mode) - from branch_failsilent when both branches are idle (ap mode) a branch switches from branch_txonly1: - to branch_normal when a transmission ends without error - to branch_failsilent if a transmit error is detected (txe_brx = 1) 6.9.1.6 branch_txonly2 this mode is purely host controlled. a bran ch switches to branch_txonly2 only in response to a ?branch_txonly? command issued in branch_normal mode. the branch remains in branch_txonly2 mode until a ?branch_normal? command is received. 6.9.1.7 branch_normal a branch switches to branch_normal:
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 18 of 62 nxp semiconductors tja1086 flexray active star coupler - from branch_lowpower when the tja1086 enters as_normal mode (provided it was not in branch_disabled before the transition to branch_lowpower mode) - from branch_txonly2 in response to a host ?branch_normal? command - from branch_txonly1 when a transmission ends without error - from branch_disabled in response to a host ?branch_normal? command - from branch_disabled when an overtemperature is resolved (temp_warn = 0), provided the overtemperature triggered the earlier transition to branch_disabled. a branch switches from branch_normal: - to branch_failsilent if a branch is clam ped, provided clamp-detection is enabled (clamp_det = 1) - to branch_failsilent if a transmit error is detected, provided bit aec = 1 - to branch_txonly2 if a host ?b ranch_txonly? command is received - to branch_disabled if an overtemper ature event is detec ted (temp_high = 1)
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 19 of 62 nxp semiconductors tja1086 flexray active star coupler 6.9.1.8 branch operating mode transition diagram fig 7. branch mode transition diagram 015aaa431 branch_disabled branch_off branch_lowpower branch_normal active star switches to as_poweroff or as_reset branch_txonly2 host command ('branch_normal') host command ('branch_txonly') active star switches to as_normal previous state not branch_disabled previous state was branch_disabled active star coupler in as_normal mode host command ('branch_normal') branch_txonly1 host command ('branch_txonly') transmission ends without error branch_failsilent transmit error clamp detected or transmit error with aec = 1 active branches idle and (apm flag set or host command ('branch_txonly')) active star switches to as_standby or as_sleep overtemperature warning inactive overtemperature detected host command ('branch_disabled')
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 20 of 62 nxp semiconductors tja1086 flexray active star coupler 6.10 spi interface the tja1086 contains a bidi rectional 16-bit serial peripheral interface (spi) for communicating with a host. the spi allows the host to configure the tja1086 and to access error and status information. 6.10.1 register access the spi supports full duplex data transfer, so status information is read out on pin sdo while control data is being shifted in on pi n sdi. bit sampling is performed on the falling edge of the clock signal on pin sclk and data is shifted on the rising edge (msb first; see figure 8 ). the clock signal must be low when scsn goes low to init iate an spi register access cycle. 6.10.2 spi registers the spi register stru cture in the tja108 6 is illustrated in figure 9 . the three msbs (bits15 to 13) contain the 3-bit register address. bit 12 defines the selected register access as read/write or read on ly. if bit 12 is 1, the spi data transfer will be read only and all data on the sdi pin will be ignored. if bit 12 is 0, data bits 11 to 0 will be written to the selected register. fig 8. spi register access scsn sclk 01 sampled floating floating 015aaa154 x x msb 14 13 12 01 lsb msb 14 13 12 01 lsb x sdi sdo 02 03 04 15 16 fig 9. spi register structure 15 0 data bits register select bits 15 to 13: register address bit 12: 1 = r/o (read only), 0 = r/w (read/write) 015aaa155
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 21 of 62 nxp semiconductors tja1086 flexray active star coupler the assignment of control and status register addresses is detailed in ta b l e 6 . data can only be written to the control and configuration registers (status registers are read-only by definition). therefore the state of bit 12 is only evaluated when these registers are being accessed. [1] bit 12 is assumed to be 1 for status registers the following subsections provide details of the bits in these registers and the control and status functionality assigned to each. table 6. register map address bits 15, 14 and 13 write access bit 12 [1] register 000 0 =r/w, 1 = r/o control register; see ta b l e 7 001 1 = r/o interrupt status register; see table 9 010 1 = r/o general status register; see table 10 011 1 = r/o branch 1 status register; see ta b l e 11 100 1 = r/o branch 2 status register; see ta b l e 11 111 0 =r/w, 1 = r/o configuration register; see table 8
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 22 of 62 nxp semiconductors tja1086 flexray active star coupler 6.10.2.1 control register the read/write control register allows the host controller to set the operating modes and to switch the tja1086 between hc and ap modes. [1] the tja1086 sets the apm flag at power-on, in respons e to a wake-up event (local, remote or trxd), if a v cc undervoltage is detected in as_normal or a v io undervoltage is detected for longer than t to(uvd)(vio) . [2] setting the reset_error bit resets all error status bits in the general status (bits 8 to 1) and branch status registers (bits 7 to 4). table 7. control register bit description bit symbol access default description 11:10 opm r/w 00 operating mode: 00: no change 01: as_standby 10: as_sleep 11: as_normal 9:8 ctrl_br1 r/w 00 branch 1 control: 00: no change 01: branch_normal 10: branch_txonly 11: branch_disabled 7:6 ctrl_br2 r/w 00 branch 2 control: 00: no change 01: branch_normal 10: branch_txonly 11: branch_disabled 5:2 reserved after power-up, write 1111 once to bits [5:2] in as_standby before entering as_normal to minimize the power supply current 1 apm [1] r/w 1 autonomous power mode 0: disabled 1: enabled 0 reset_error [2] r/w 0 reset error flags and status bits 0: no change 1: reset flags/bits
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 23 of 62 nxp semiconductors tja1086 flexray active star coupler 6.10.2.2 configuration register the read/write configuration re gister allows the host controller to configure a number of tja1086 parameters and functions. table 8. configuration register bit description bit symbol access default description 11 aec r/w 0 autonomous error confinement: 0: disabled 1: enabled 10 bft r/w 1 bus failure timer 0: disabled 1: enabled 9 wud_br1 r/w 1 wake-up detection on branch 1: 0: disabled 1: enabled 8 wud_br2 r/w 1 wake-up detection on branch 2: 0: disabled 1: enabled 7:6 reserved after power-up, write 00 once to bits [7:6] to minimize the power supply current 5 cc_en r/w 0 cc interface enable (txd and txen inputs; rxd output): 0: disabled 1: enabled 4 trxd_en r/w 1 trxd interface enable: 0: disabled 1: enabled 3 reserved always 0 2 clamp_det r/w 1 clamping detection: 0: disabled 1: enabled 1 bit_latching r/w 0 status bit latching: 0: disabled 1: enabled 0 parity r - parity bit - odd parity (including parity bit)
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 24 of 62 nxp semiconductors tja1086 flexray active star coupler autonomous error confinement (aec): setting the aec bit enables the autonomous error confinement feature of the tja1086. when aec is enabled, a bus error (txe_brx = 1) triggers a transition from branch_normal to branch_failsilent. aec is disabled by default. bus failure timer (bft): setting the bft bit enable s the bus failure timer. when the bft is enabled, pulses shorter than t to(bft) are ignored, resulting in more robust bus error detection. the bft is enabled by default. wake-up detection on branch x (wud_brx): setting the wud_brx bit enables wake-up detection on the specified branch. each branch in a tja1086 star network contains a low-power receiver for detecting remote wake-up events. these events can be enabled and disabled individually. this feature makes it possible to minimize quie scent current consumption, especially in as_sleep mode. wake-up detection is enabled by default on both branches. communication controller interface enable (cc_en): setting bit cc_en enables the communication controller interface. a communication controller can be connected to the tja1086 when cc_en = 1. if cc_en = 0, the rxd output driver is switched off to minimize current consumption in as_normal mode. the cc interface is disabled by default. trxd0/1 interface enable (trxd_en): setting bit trxd_en enables the trxd0 and trxd1 interfaces. when the trxd0/1 interfaces are enabled, several tja1086 devices can be connected together to form a single active star. if only one tja1086 is needed at any time, the trxd0/1 interfaces can be disabled to mi nimize current consumption in as_normal mode. the trxd0 and trxd1 interfaces are enabled by default. clamp detection (clamp_det): setting bit clamp_det enables clamp detecti on on txen, trxd and on both branches. when clamp detection is enabled, a clamp_e rror interrupt is generated if clamping is detected on txen (clamp_txen = 1), trxd (clamp_trxd = 1) or on a branch (clamp_brx). clamp detection is enabled by default. bit latching (bit_latching): when bit latching is enabled (bit_latching = 1), the status bits in the general and branch x status registers reflect the latched state until the register is read. once the register has been read, latching is released and the bi ts then reflect the current ?live? status. when bit latching is disabled, the status bits reflect the ?live? status at all times. bit latching is disabled by default.
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 25 of 62 nxp semiconductors tja1086 flexray active star coupler 6.10.2.3 interrupt status register the interrupt status register is read-only. when the tja1086 sets a bit in this register, it triggers a falling edge on pin intn. bi ts pwon, wu, spi_error and hc_error are reset after a successful read operation. the remaining bits are reset after the flag (or flags) that triggered the interrupt has been reset and a successful read operation has been performed (see section 6.7 ). table 9. interrupt status register bit symbol description 11 pwon power-on detection: 0: no power-on detected 1: power-on detected 10 wu wake-up event detection (any): 0: no wake-up event detected 1: wake-up event detected 9 event_br1 wake-up or bus e rror detection on branch 1: 0: no wake-up or bus error detected 1: wake-up or bus error detected 8 event_br2 wake-up or bus e rror detection on branch 2: 0: no wake-up or bus error detected 1: wake-up or bus error detected 7:6 reserved 5 uv_error undervoltage detected on v bat , v cc or v io : 0: no undervoltage detected 1: undervoltage detected 4 clamp_error clamp error on trxd, txen or branch or collision on trxd: 0: no clamping error detected 1: clamping error detected 3 spi_error spi communication error: 0: not detected 1: detected 2 hc_error host command error: 0: not detected 1: detected 1 temp_error overtemperature error: 0: not detected 1:detected 0 parity parity bit - odd parity (including parity bit)
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 26 of 62 nxp semiconductors tja1086 flexray active star coupler pwon: a pwon interrupt is generated to signal a power-on event. the pwon interrupt status bit is set wh en the tja1086 leaves as_poweroff or as_reset. it is reset after a successful read operation on the interrupt status register. wu: a wu interrupt indicates the occurrence of a wake-up event. the wu interrupt status bit is set when a wake-up event is detected on a branch (wu_brx = 1), on trxd0/1 (wu_trxd = 1), or on lwu (wu_local = 1). it is reset after a successful read operation on the interrupt status register. event_brx: an event_brx interrupt signals the oc currence of a significant event on the relevant branch. the event_brx interrupt st atus bit is set when any of th e following events is detected on a branch: - a wake-up event (wu_brx = 1) - a bus error (txe_brx = 1) - clamping (clamp_brx = 1) it is reset after the flag (or flags) that triggered the interrupt has been reset and the interrupt status register has been read successfully. resetting event_brx will trigger a falling edge on intn to in dicate to the host th at the event that trig gered the in terrupt has been resolved (except when the interrupt was triggered by a branch wake-up event). uv_error: a uv_error interrupt indicates that an undervoltage has occurred. the uv_error interrupt status bit is set when a v bat (uv_vbat = 1), v cc (uv_vcc = 1) or v io (uv_vio = 1) undervoltage is detecte d. it is reset after the flag (or flags) that triggered the interrupt has been re set and the interrupt status register has been read successfully. resetting uv_error triggers a falling edge on intn to indicate to the host that the undervoltage cond ition is no longer present. clamp_error: a clamp_error interrup t indicates that an input channel has become clamped or a collision has oc curred on the trxdo/1 interface. the clamp_error interrupt status bit is set when clamping is detected on trxd (clamp_trxd = 1), on txen (clamp_txen = 1) or on a branch (clamp_brx = 1) or if a collision is detected on trxd0/trxd1 (coll_trxd = 1). it is reset after the flag (or flags) that triggered the interrupt has been re set and the interrupt status register has been read successfully. resetting clamp_error tr iggers a falling edge on intn to indicate to the host that the clamp or collision error has been corrected. spi_error: an spi_error interrupt in dicates that an error has occurred during spi communications. the spi_error interrupt status bit is set if the number of sclk cycles generated during a low phase on scsn does not equal 16. it is reset after a successful read operation on the interrupt status register. hc_error: a hc_error interrupt indicates that an invalid host command has been received.
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 27 of 62 nxp semiconductors tja1086 flexray active star coupler the hc_error interrupt status bit is set when the host requests an illegal mode transition (as defined in the section 6.8.1 and section 6.9.1 ). it is reset after a successful read operation on the interrupt status register. temp_error: a temp_error interrupt signals the presence of an overtemperature condition. the temp_error interrupt status bit is set when the temperature warning level (temp_warn = 1) or temperature high level (temp_high = 1) is exceeded. it is reset after the flag (or flags) that triggered the in terrupt has been reset and the interrupt status register has been read success fully. resetting temp_error triggers a falling edge on intn to indicate to the host that the overtemperature cond ition is no longer present.
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 28 of 62 nxp semiconductors tja1086 flexray active star coupler 6.10.2.4 general status register the read-only general status register contai ns status information not included in the interrupt status register. table 10. general status register bit symbol description 11 wu_local local wake-up on pin lwu: 0: no wake-up detected 1: wake-up detected 10 wu_trxd wake-up via trxd0/trxd1 0: no wake-up detected 1: wake-up detected 9 bge_fb bge status feedback: 0: if bge is low 1: if bge is high 8 uv_vbat v bat undervoltage 0: no undervoltage detected 1: undervoltage detected 7 uv_vcc v cc undervoltage 0: no undervoltage detected 1: undervoltage detected 6 uv_vio v io undervoltage 0: no undervoltage detected 1: undervoltage detected 5 temp_warn temperature warning level 0: not exceeded 1: exceeded 4 temp_high temperature high level 0: not exceeded 1: exceeded 3 clamp_trxd clamping detection on trxd: 0: not detected 1: detected 2 clamp_txen clamping detection on txen: 0: not detected 1: detected 1 coll_trxd collision detection on trxdo and trxd1: 0: not detected 1:detected 0 parity parity bit - odd parity (including parity bit)
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 29 of 62 nxp semiconductors tja1086 flexray active star coupler wu_local: wu_local is set when a local wake-up event is detected. a wu interrupt is generated. wu_local is reset after the general status register has been read successfully or when the tja1086 switches from as_normal to as_standby or as_sleep. this ensures that a new wake-up event will be detected. wu_trxd: wu_trxd is set when a wake-up event is detected on the trxd0/1 interface. a wu interrupt is generated. wu_trxd is reset after the general status regi ster has been read su ccessfully or when the tja1086 switches from as_normal to as_standby or as_sleep. this ensures that a new wake-up event will be detected. bge_fb: bit bge_fb provides information about the voltage level on pin bge. bge_fb is set when the voltage on bge is high and reset when the voltage on bge is low. uv_vbat: uv_vbat is set when a v bat undervoltage is detected, generating a uv_error interrupt. if bit latching is enabled (bit_latching = 1) , uv_bat will remain se t until the general status register has been read, after which it will reflect the cu rrent ?live? situation (set if v bat v uvr(vbat) for longer than t rec(uv)(vbat) ). if bit latching is not enabled, uv_bat will reflect the ?live? situation at all times. uv_vcc: uv_vcc is set when a v cc undervoltage is detected, generating a uv_error interrupt. if bit latching is enabled (bit_latching = 1), uv_vcc will remain se t until the general status register has been read, after which it will reflect the cu rrent ?live? situation (set if v cc v uvr(vcc) for longer than t to(uvr)(vcc) ). if bit latching is not enabled, uv_vcc will reflect the ?live? situation at all times. uv_vio: uv_vio is set when a v io undervoltage is detected, generating a uv_error interrupt. if bit latching is enabled (bit_latching = 1) , uv_vio will remain set until the general status register has been read, after which it will reflect the cu rrent ?live? situation (set if v io v uvr(vio) for longer than t to(uvr)(vio) ). if bit latching is not enabled, uv_vio will reflect the ?live? situation at all times. when a v io undervoltage is active, the digital inputs are disabled and the tja1086 is unable to accept host commands. if the v io undervoltage persists for longer than t to(uvd)(vio) , the apm flag is set and the tja108 6 switches from host control to autonomous control.
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 30 of 62 nxp semiconductors tja1086 flexray active star coupler temp_warn: temp_warn is set when the junction temperature rises above the temperature warning level, generating a temp_error interrupt. if bit latching is enabled (bit_latchin g = 1), temp_warn will remain set until the general status register has bee n read, after which it will reflect the current ?live? situation (set when t j >t j(warn) and reset when t j t j(high) and reset when t j tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 31 of 62 nxp semiconductors tja1086 flexray active star coupler 6.10.2.5 branch x status registers there is a dedicated read-only status register for each branch, i.e. there are two branch x status registers in total. each register contains relevant status information of a branch. table 11. branch x status register bit symbol description 11-9 state_brx state of active branch: 000: branch_normal mode 001: branch_disabled mode 010: branch_lowpower mode 011: branch_txonly_2 mode 100: branch_failsilent mode 101: branch_txonly_1 mode 8 wu_brx wake-up status 0: no wake-up detected 1: wake-up detected 7 reserved always 0 6 txe_brx transmit error on branch 0: not detected 1: detected 5 reserved always 0 4 clamp_brx clamp detection on branch 0: not detected 1: detected 3 reserved always 0 2 reserved always 1 1 reserved always 0 0 parity parity bit - odd parity (including parity bit)
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 32 of 62 nxp semiconductors tja1086 flexray active star coupler state_brx: bits state_brx indicate the current branch operating mode. wu_brx: wu_brx is set when a remote wake-up event is detected on a branch. a wu interrupt is generated along with an event_br x interrupt to indicate t he branch wher e the wake-up pattern or dedicated data frame was detected. wu_brx is reset after the branch status register has been read successfully or when the tja1086 switches from as_normal to as_standby or as_sleep. this ensures that a new wake-up event will be detected. txe_brx: txe_brx is set when a transmit error is detected on a branch, generating an event_brx interrupt. a transmit error is detected when ther e is a mismatch between the transmitted and received signals. if bit latching is enabled (bit_latching = 1) , txe_brx will remain set until the register has been read, after which it is reset if no mismatch is found between transmitted and received signals or the branch leaves branch_normal. if bit latching is not enabled, txe_brx is reset if no mismatch is found in a data frame or the branch leaves branch_normal. clamp_brx: clamp_brx is set when a branch is clamped for longer than t detcl(bus) , generating a clamp_error interrupt along with an event_brx interrup t to indicate the branch. if bit latching is enabled (bit_latching = 1), clamp_brx will remain set until the register has been read, after which it is reset when idle is detected on the branch. if bit latching is not enabled, clamp_brx is reset when idle is detected on the branch.
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 33 of 62 nxp semiconductors tja1086 flexray active star coupler 7. limiting values table 12. limiting values in accordance with the absolute maximum rating syst em (iec 60134). all voltages are referenced to gnd. symbol parameter conditions min max unit v cc supply voltage no time limit ? 0.3 +5.5 v v bat battery supply voltage no time limit ? 0.3 +48 v during load dump (400 ms max.) ? 0.3 +60 v v buf supply voltage on pin v buf no time limit ? 0.3 +5.5 v v io supply voltage on pin v io no time limit ? 0.3 +5.5 v v inh voltage on pin inh no time limit ? 0.3 v bat + 0.3 v i inh current on pin inh as_normal, as_standby or as_reset no time limit ? 10 ma v lwu voltage on pin lwu no time limit ? 0.3 v bat + 0.3 v v trxd0 voltage on pin trxd0 no time limit ? 0.3 +5.5 v v trxd1 voltage on pin trxd1 no time limit ? 0.3 +5.5 v v bge voltage on pin bge no time limit ? 0.3 +5.5 v v txd voltage on pin txd no time limit ? 0.3 +5.5 v v txen voltage on pin txen no time limit ? 0.3 +5.5 v v rxd voltage on pin rxd no time limit ? 0.3 min(v io + 0.3, 5.5) v v rstn voltage on pin rstn no time limit ? 0.3 +5.5 v v intn voltage on pin intn no time limit ? 0.3 +5.5 v v scsn voltage on pin scsn no time limit ? 0.3 +5.5 v v sclk voltage on pin sclk no time limit ? 0.3 +5.5 v v sdi voltage on pin sdi no time limit ? 0.3 +5.5 v v sdo voltage on pin sdo no time limit ? 0.3 +5.5 v v bp voltage on pin bp on any bp pin with respect to other bp/bm pins and gnd; no time limit ? 60 +60 v v bm voltage on pin bm on any bm pin with respect to other bp/bm pins and gnd; no time limit ? 60 +60 v i o(lwu) output current on pin lwu no time limit ? 15 - ma v trt transient voltage on pins lwu, v bat , bp and bm [1] ? 100 - v [2] -75 v [3] ? 150 - v [4] -100 v t amb ambient temperature ? 40 +125 ?c t vj virtual junction temperature [5] ? 40 +150 ?c t stg storage temperature ? 55 +150 ?c
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 34 of 62 nxp semiconductors tja1086 flexray active star coupler [1] according to iso7637, test pulse 1, cl ass c; verified by an external test house. [2] according to iso7637, test pulse 2a, cl ass c; verified by an external test house. [3] according to iso7637, test pulse 3a, cl ass c; verified by an external test house. [4] according to iso7637, test pulse 3b, cl ass c; verified by an external test house. [5] in accordance with iec 60747-1. an alternative definition of t vj is: t vj =t amb +p? r th(j-a) , where r th(j-a) is a fixed value used in the calculation of t vj . the rating for t vj limits the allowable combinations of pow er dissipation (p) and ambient temperature (t amb ). [6] iec61000-4-2: c = 150 pf; r = 330 ? ; verified by an external test house. the test result is equal to or better than ? 6 kv (unaided). [7] hbm: with respect to gnd (and to each other); c = 100 pf; r = 1.5 k ? ; [8] mm: c = 200 pf; l = 0.75 ? h; r = 10 ? . [9] cdm: r = 1 ? . [10] with 3.3 k ? in series. [11] with 100 nf from v bat to gnd. [12] guaranteed only when all n.c. pins are connected to gnd. 8. thermal characteristics [1] tja1086 mounted on a jedec 2s2p board with 36 vias between laye r 1 and layer 2; via diameter: 0.5 mm, wall thickness: 18 ? m. v esd electrostatic discharge voltage iec61000-4-2 on pins bp and bm to gnd [6] ? 6.0 +6.0 kv iec61000-4-2 on pin lwu to gnd [6] [10] ? 6.0 +6.0 kv iec61000-4-2 on pin v bat to gnd [6] [11] ? 6.0 +6.0 kv hbm on pins bp and bm to gnd [7] ? 8.0 +8.0 kv hbm on pins lwu and v bat to gnd [7] [12] ? 6.0 +6.0 kv hbm on any other pin [7] ? 4.0 +4.0 kv mm on all pins [8] ? 200 +200 kv cdm on all pins [9] ? 1000 +1000 kv table 12. limiting values ?continued in accordance with the absolute maximum rating syst em (iec 60134). all voltages are referenced to gnd. symbol parameter conditions min max unit table 13. thermal characteristics symbol parameter conditions typ unit r th(j-a) thermal resistance from junction to ambient [1] in free air 24 k/w r th(j-c) thermal resistance from junction to case in free air 2.5 k/w
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 35 of 62 nxp semiconductors tja1086 flexray active star coupler 9. static characteristics table 14. static characteristics all parameters are guaranteed for v bat = 4.45 v to 60 v; v cc = 4.45 v to 5.25 v; v buf = 4.45 v to 5.25 v;v io = 2.55 v to 5.25 v; t vj = ? 40 ? c to +150 ? c; c bus = 100 pf; r bus = 40 ? to 55 ? ; c rxd = 15 pf and c trxd0 = c trxd1 = 50 pf unless otherwise specified. all voltages are defined with respect to ground; positive currents flow into the ic. symbol parameter conditions min typ max unit supply: pin v bat v bat battery supply voltage operating range 4.75 - 60 v i bat battery supply current as_normal; no load on inh - 0.1 1 ma as_standby; no load on inh; wake-up enabled on both branches; bits [7:6] in configuration register ( ta b l e 8 ) set to 11 -50100 ? a as_standby; no load on inh; wake-up enabled on both branches; bits [7:6] in configuration register set to 00 -3880 ? a as_sleep; wake-up enabled on both branches; bits [7:6] in configuration register set to 11 -50100 ? a as_sleep; wake-up enabled on both branches; bits [7:6] in configuration register set to 00 -3880 ? a as_sleep; wake-up enabled on both branches; bits [7:6] in configuration register set to 11; t vj ? 85 ?c -5090 ? a as_sleep; wake-up enabled on both branches; bits [7:6] in configuration register set to 00; t vj ? 85 ?c -3870 ? a as_sleep; wake-up disabled on both branches -2555 ? a as_sleep; wake-up disabled on both branches; t vj ? 85 ?c -2545 ? a v uvd undervoltage detection voltage 4.45 - 4.715 v v uvr undervoltage recovery voltage 4.475 - 4.74 v v uvhys undervoltage hysteresis voltage 25 - 290 mv power-on reset for v dig v th(det)por power-on reset detection threshold voltage of internal digital circuitry 3 - 3.4 v v th(rec)por power-on reset recovery threshold voltage of internal digital circuitry 3.1 - 3.5 v v hys(por) power-on reset hysteresis voltage of internal digital circuitry 100 500 mv
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 36 of 62 nxp semiconductors tja1086 flexray active star coupler ? v (vcc-vdig) voltage difference between v cc and v dig v cc =4.45 v; v bat =v buf =0 v - - 1.0 v ? v (vbat-vdig) voltage difference between v bat and v dig v bat =4.45 v; v cc =v buf =0 v - - 1.0 v ? v (vbuf-vdig) voltage difference between v buf and v dig v buf = 4.45 v; v cc =v bat = 0 v - - 1.0 v supply: pins v cc1 and v cc2 (connected on the pcb) v cc supply voltage operating range 4.75 - 5.25 v i cc supply current as_normal; v txen =0 v; v bge =v io ; r bus =45 ? ; both branches in branch_normal; bits [5:2] in control register ( ta b l e 7 ) set to 0000 [1] -120180ma as_normal; v txen =0 v; v bge =v io ; r bus =45 ? ; both branches in branch_normal; bits [5:2] in control register set to 1111 [1] -90120ma as_normal; v txen =v io ; v bge =0v; r bus =45 ? ; both branches in branch_normal and/or branch_disabled [1] --80ma as_standby [1] [2] -435 ? a as_standby; t vj ? 85 ?c [1] [2] -415 ? a as_sleep, as_reset [1] [2] -030 ? a as_sleep, as_reset; t vj ? 85 ?c [1] [2] -010 ? a v uvd undervoltage detection voltage 4.45 - 4.715 v v uvr undervoltage recovery voltage 4.475 - 4.74 v v uvhys undervoltage hysteresis voltage 25 - 290 mv supply: pins v buf1 and v buf2 (connected on the pcb) v buf supply voltage on pin v buf 5.5 v ? v bat ? 60 v; v cc ? v uvd(vcc) 4.5 - 5.25 v 4.5 v ? v bat ? 5.5 v; v cc ? v uvd(vcc) 3.5 - 5.25 v ? v (vcc-vbuf) voltage difference between v cc and v buf v cc ? v uvr(vcc) 0 - 0.25 v i ch(vbat-vbuf) charge current from v bat to v buf 5.5 v ? v bat ? 60 v; v cc ? v uvd(vcc) ; 0 v ? v buf ? 4v ? 200 ? 100 ? 30 ? a v uvd undervoltage detection voltage 4.2 - 4.474 v v uvr undervoltage recovery voltage 4.225 - 4.499 v table 14. static characteristics ?continued all parameters are guaranteed for v bat = 4.45 v to 60 v; v cc = 4.45 v to 5.25 v; v buf = 4.45 v to 5.25 v;v io = 2.55 v to 5.25 v; t vj = ? 40 ? c to +150 ? c; c bus = 100 pf; r bus = 40 ? to 55 ? ; c rxd = 15 pf and c trxd0 = c trxd1 = 50 pf unless otherwise specified. all voltages are defined with respect to ground; positive currents flow into the ic. symbol parameter conditions min typ max unit
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 37 of 62 nxp semiconductors tja1086 flexray active star coupler v uvhys undervoltage hysteresis voltage 25 - 299 mv supply: pin v io v io supply voltage on pin v io operating range 2.8 - 5.25 v i io supply current on pin v io as_normal; v txd =v io - - 1000 ? a as_standby; as_sleep; as_poweroff; v scsn = v txen = v rstn = v vio -27 ? a i r reverse current from digital input pin to v io ; as_poweroff; v txen = v txd = v bge = v scsn = v sclk = v sdi = v rstn = 5.25 v; v cc =v io =0 v ? 5-+5 ? a v uvd undervoltage detection voltage 2.55 - 2.765 v v uvr undervoltage recovery voltage 2.575 - 2.79 v v uvhys undervoltage hysteresis voltage 25 - 240 mv pin txen v ih high-level input voltage as_normal 0.7v io -5.5v v il low-level input voltage as_normal ? 0.3 - 0.3v io v i ih high-level input current v txen = v io ? 2-+2 ? a i il low-level input current v txen = 0.3v io ? 300 - ? 50 ? a pin txd v ih high-level input voltage as_normal 0.6v io -5.5v v il low-level input voltage as_normal ? 0.3 - 0.4v io v r pd pull-down resistance to gnd 50 150 400 k ? c i input capacitance with respect to all other pins at ground; v txd = 100 mv; f = 5 mhz [3] --10pf pin bge v ih high-level input voltage as_normal 0.7v io -5.5v v il low-level input voltage as_normal ? 0.3 - 0.3v io v r pd pull-down resistance to gnd 50 150 400 k ? pin rxd i oh high-level output current v rxd = v io ? 0.4 v ? 15 - ? 1ma i ol low-level output current v rxd = 0.4 v 1 - 15 ma v oh high-level output voltage i oh(rxd) = ? 1 ma v io ? 0.4 -v io v v ol low-level output voltage i ol(rxd) = 1 ma - - 0.4 v table 14. static characteristics ?continued all parameters are guaranteed for v bat = 4.45 v to 60 v; v cc = 4.45 v to 5.25 v; v buf = 4.45 v to 5.25 v;v io = 2.55 v to 5.25 v; t vj = ? 40 ? c to +150 ? c; c bus = 100 pf; r bus = 40 ? to 55 ? ; c rxd = 15 pf and c trxd0 = c trxd1 = 50 pf unless otherwise specified. all voltages are defined with respect to ground; positive currents flow into the ic. symbol parameter conditions min typ max unit
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 38 of 62 nxp semiconductors tja1086 flexray active star coupler v o output voltage when undervoltage on v io ; v cc ? 4.75 v; r l = 100 k ? to gnd --500mv v cc =v bat =v buf =0v; r l = 100 k ? to v io v io ? 500 -v io mv pin rstn v ih high-level input voltage 0.7v io -5.5v v il low-level input voltage ? 0.3 - 0.3v io v i ih high-level input current v rstn = v io ? 1-+1 ? a i il low-level input current v rstn = 0.3v io ? 300 - ? 30 ? a pins trxd0 and trxd1 v ih high-level input voltage 0.7v buf -5.5v v il low-level input voltage ? 0.3 - 0.3v buf v v ol low-level output voltage r pu =200 ?? 0.3 - +0.8 v c i input capacitance with respect to all other pins at gnd; v txd = 100 mv; f = 5 mhz [3] --15pf r pu pull-up resistance to v buf 2.5 5 10 k ? pins bp and bm v ih(dif) differential high-level input voltage as_normal; ? 10 v ? v cm ? +15 v [4] 150 - 300 mv v il(dif) differential low-level input voltage as_normal; ? 10 v ? v cm ? +15 v [4] ? 300 - ? 150 mv as_standby; as_sleep; ? 10 v ? v cm ? +15 v [4] ? 400 - ? 125 mv ? v i(dif)(h-l) differential input voltage difference between high-level and low-level v cm = 2.5 v; as_normal [4] ? 30 - +30 mv v oh(dif) differential high-level output voltage 4.75 v ? v buf ? 5.25 v 900 - 2000 mv 4.45 v ? v buf ? 5.25 v 700 - 2000 mv v ol(dif) differential low-level output voltage 4.75 v ? v buf ? 5.25 v ? 2000 - ? 900 mv 4.45 v ? v buf ? 5.25 v ? 2000 - ? 700 mv v o(idle)(bp) idle output voltage on pin bp branch_normal 0.4v buf -0.6v buf v branch_lowpower ? 0.1 - +0.1 v v o(idle)(bm) idle output voltage on pin bm branch_normal 0.4v buf -0.6v buf v branch_lowpower ? 0.1 - +0.1 v i o(idle)bp idle output current on pin bp ? 60 v ? v bp ? +60 v; no bus load ? 7.5 - +7.5 ma i o(idle)bm idle output current on pin bm ? 60 v ? v bm ? +60 v; no bus load ? 7.5 - +7.5 ma v o(idle)(dif) differential idle output voltage ? 25 0 +25 mv ?v i(dif)det(act) ? activity detection differential input voltage (absolute value) as_normal; ? 10 v ? v cm ? +15 v [4] 150 - 300 mv v cm(bus)(data_0) data_0 bus common-mode voltage branch_transmit 0.4v buf -0.65 ? v buf v table 14. static characteristics ?continued all parameters are guaranteed for v bat = 4.45 v to 60 v; v cc = 4.45 v to 5.25 v; v buf = 4.45 v to 5.25 v;v io = 2.55 v to 5.25 v; t vj = ? 40 ? c to +150 ? c; c bus = 100 pf; r bus = 40 ? to 55 ? ; c rxd = 15 pf and c trxd0 = c trxd1 = 50 pf unless otherwise specified. all voltages are defined with respect to ground; positive currents flow into the ic. symbol parameter conditions min typ max unit
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 39 of 62 nxp semiconductors tja1086 flexray active star coupler v cm(bus)(data_1) data_1 bus common-mode voltage branch_transmit 0.4v buf -0.65 ? v buf v r i input resistance r bus = ? ? 10 20 40 k ? r i(dif)(bp-bm) differential input resistance between pin bp and pin bm r bus = ? ? 20 40 80 k ? z o(eq)tx transmitter equivalent output impedance c bus = 100 pf; r bus =40 ? or 100 ? [5] 10 - 600 ? c i(bp) input capacitance on pin bp with respect to all other pins at gnd; v bp = 100 mv; f = 5 mhz [3] --15pf c i(bm) input capacitance on pin bm with respect to all other pins at gnd; v bm = 100 mv; f = 5 mhz [3] --15pf c i(dif)(bp-bm) differential input capacitance between pin bp and pin bm v bp = 100 mv; v bm = 100 mv; f=5mhz [3] --5pf i li(bp) input leakage current on pin bp as_poweroff; v bp =v bm ; 0 v ? v bp ? 5v ? 50+5 ? a loss of ground; v bp =v bm =0v; all other pins connected to 16 v via 0 ? [3] ? 1600 - +1600 ? a i li(bm) input leakage current on pin bm as_poweroff; v bp =v bm ; 0 v ? v bm ? 5v ? 50+5 ? a loss of ground; v bp =v bm =0v; all other pins connected to 16 v via 0 ? [3] ? 1600 - +1600 ? a ?i o(sc) ? short-circuit output current (absolute value) on pin bp; ? 5v ? v bp ? +60 v; r sc ? 1 ? ; t sc ? 1500 ? s [6] [8] --72ma on pin bp; ? 5v ? v bp ? +27 v; r sc ? 1 ? ; t sc ? 1500 ? s [6] [8] --60ma on pin bm; ? 5v ? v bm ? +60 v; r sc ? 1 ? ; t sc ? 1500 ? s [6] [8] --72ma on pin bm; ? 5v ? v bm ? +27 v; r sc ? 1 ? ; t sc ? 1500 ? s [6] [8] --60ma on pins bp and bm; v bp =v bm ; r sc ? 1 ? ; t sc ? 1500 ? s [7] [8] --60ma pin inh v oh high-level output voltage i inh = ? 0.2 ma: as_normal; as_standby; as_reset v bat ? 0.8 -v bat v i l leakage current as_sleep; as_poweroff ? 3-+3 ? a i o(sc) short-circuit output current v inh = 0 v; as_normal; as_standby; as_reset ? 7- ? 1ma pin lwu v th(wake)lwu wake-up threshold voltage on pin lwu as_sleep; as_standby 2 - 3.75 v v hys(wake)lwu wake-up hysteresis voltage on pin lwu 0.3 - 1.2 v table 14. static characteristics ?continued all parameters are guaranteed for v bat = 4.45 v to 60 v; v cc = 4.45 v to 5.25 v; v buf = 4.45 v to 5.25 v;v io = 2.55 v to 5.25 v; t vj = ? 40 ? c to +150 ? c; c bus = 100 pf; r bus = 40 ? to 55 ? ; c rxd = 15 pf and c trxd0 = c trxd1 = 50 pf unless otherwise specified. all voltages are defined with respect to ground; positive currents flow into the ic. symbol parameter conditions min typ max unit
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 40 of 62 nxp semiconductors tja1086 flexray active star coupler i il low-level input current v lwu = 2 v for t > t det(wake)(lwu) 3-11 ? a v lwu = 0 v ? 2- ? 0.3 ? a i ih high-level input current v lwu = 3.75 v for t > t det(wake)(lwu) ?? ???? v ? v bat ? +60 v ? 11 - ? 3 ? a v lwu = v bat 0.2 - 1.2 ? a pin sdo v oh high-level output voltage i oh(sdo) = ? 0.5 ma v io ?? 0.4 -v io v v ol low-level output voltage i ol(sdo) = 0.5 ma - - 0.4 v i oh high-level output current v sdo = v io ? 0.4 v ? 8 ? 2 ? 0.5 ma i ol low-level output current v sdo = 0.4 v 0.5 2 8 ma i l leakage current scsn high ? 5-+5 ? a v o output voltage when undervoltage on v io ; v cc ? 4.75 v; r l = 100 k ? to gnd --500mv v cc =v bat =v buf =0v; r l = 100 k ? to gnd --500mv pin sdi v ih high-level input voltage 0.7v io -5.5v v il low-level input voltage ? 0.3 - 0.3v io v r pd pull-down resistance to gnd 50 150 400 k ? pin scsn v ih high-level input voltage 0.7v io -5.5v v il low-level input voltage ? 0.3 - 0.3v io v i ih high-level input current v scsn =v io ? 1-+1 ? a i il low-level input current v scsn =0.3v io ? 15 - ? 3 ? a pin sclk v ih high-level input voltage 0.7v io -5.5v v il low-level input voltage ? 0.3 - 0.3v io v r pd pull-down resistance to gnd 50 150 400 k ? pin intn v ol low-level output voltage i ol(intn) = 0.5 ma - - 0.4 v v o output voltage when undervoltage on v io ; v cc ? 4.75 v; r l = 100 k ? to gnd --500mv v cc =v bat =v buf =0v; r l = 100 k ? to gnd --500mv table 14. static characteristics ?continued all parameters are guaranteed for v bat = 4.45 v to 60 v; v cc = 4.45 v to 5.25 v; v buf = 4.45 v to 5.25 v;v io = 2.55 v to 5.25 v; t vj = ? 40 ? c to +150 ? c; c bus = 100 pf; r bus = 40 ? to 55 ? ; c rxd = 15 pf and c trxd0 = c trxd1 = 50 pf unless otherwise specified. all voltages are defined with respect to ground; positive currents flow into the ic. symbol parameter conditions min typ max unit
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 41 of 62 nxp semiconductors tja1086 flexray active star coupler [1] specified current is the sum of currents i cc1 and i cc2 . [2] these values are guaranteed under the condition that the internal digital block is supplied from v bat . [3] guaranteed by design. [4] v cm is the bp/bm common mode voltage. [5] z o(eq)(tx) = 50 ? ? (v bus(100) -v bus(40) )/(2.5 ? v bus(40) -v bus(100) ) where: - v bus(100) is the differential output voltage on a load of 100 ?? and 100 pf in parallel - v bus(40) is the differential output voltage on a load of 40 ? and 100 pf in parallel when driving a data_1. [6] r sc is the short-circuit resistance; voltage di fference between bus pins bp and bm is 60 v max. [7] r sc is the short-circuit resistance between bp and bm. [8] t sc is the minimum duration of the short-circuit temperature protection t j(warn) warning junction temperature 155 - 190 ?c t j(high) high junction temperature 165 - 200 ?c ? t j(high-warn) difference between high and warning junction temperature 10 - 45 ?c table 14. static characteristics ?continued all parameters are guaranteed for v bat = 4.45 v to 60 v; v cc = 4.45 v to 5.25 v; v buf = 4.45 v to 5.25 v;v io = 2.55 v to 5.25 v; t vj = ? 40 ? c to +150 ? c; c bus = 100 pf; r bus = 40 ? to 55 ? ; c rxd = 15 pf and c trxd0 = c trxd1 = 50 pf unless otherwise specified. all voltages are defined with respect to ground; positive currents flow into the ic. symbol parameter conditions min typ max unit
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 42 of 62 nxp semiconductors tja1086 flexray active star coupler 10. dynamic characteristics table 15. dynamic characteristics all parameters are guaranteed for v bat = 4.45 v to 60 v; v cc = 4.45 v to 5.25 v; v buf = 4.45 v to 5.25 v; v io = 2.55 v to 5.25 v; t vj = ? 40 ? c to + 150 ? c; r bus = 40 ? , c bus = 100 pf; c rxd = 15 pf; c trxd0 = c trxd1 = 50 pf and c sdo = 50 pf unless otherwise specified. all voltages are defined with respect to ground; positive currents flow into the ic. symbol parameter conditions min typ max unit undervoltage detection t det(uv)(vbat) undervoltage detection time on pin v bat v bat =4.35v 5 - 150 ? s t rec(uv)(vbat) undervoltage recovery time on pin v bat v bat =4.85v 5 - 150 ? s t det(uv)(vcc) undervoltage detection time on pin v cc v cc = 4.35 v 5 - 100 ? s t rec(uv)(vcc) undervoltage recovery time on pin v cc v cc =4.85v 5 - 100 ? s t det(uv)(vbuf) undervoltage detection time on pin v buf v buf =4.10v 5 - 100 ? s t rec(uv)(vbuf) undervoltage recovery time on pin v buf v buf =4.6v 5 - 100 ? s t det(uv)(vio) undervoltage detection time on pin v io v io =2.45v 5 - 100 ? s t rec(uv)(vio) undervoltage recovery time on pin v io v io =2.9v 5 - 100 ? s t to(uvd)(vcc) undervoltage detection time-out time on pin v cc 100 - 670 ms t to(uvd)(vio) undervoltage detection time-out time on pin v io 100 - 670 ms t to(uvr)(vcc) undervoltage recovery time-out time on pin v cc 1-5ms t to(uvr)(vio) undervoltage recovery time-out time on pin v io 1-5ms spi t cy(clk) clock cycle time 0.5 - 100 ? s t spilead spi enable lead time 250 - - ns t spilag spi enable lag time 250 - - ns t su(d) data input set-up time 150 - - ns t h(d) data input hold time 100 - - ns t d(sclk-sdo) delay time from sclk to sdo - - 200 ns t wh(s) chip select pulse width high 10 - - ? s t d(scsnhl-sdol) scsn falling edge to sdo low-level delay time --250ns t d(scsnlh-sdoz) scsn rising edge to sdo three-state delay time --500ns
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 43 of 62 nxp semiconductors tja1086 flexray active star coupler transmit path t d(txd-bus) delay time from txd to bus as_normal; see figure 10 [1] data_0 - - 75 ns data_1 - - 75 ns ? t d(txd-bus) delay time difference from txd to bus between data_0 and data_1; as_normal [1] [2] ? 5- +5ns t d(txd-trxd) delay time from txd to trxd as_normal; see figure 10 [1] data_0 - - 60 ns data_1 - - 60 ns ? t d(txd-trxd) delay time difference from txd to trxd between data_0 and data_1; as_normal [1] ? 5- +5ns t d(trxd-bus) delay time from trxd to bus as_normal; see figure 12 data_0 - - 75 ns data_1 - - 75 ns ? t d(trxd-bus) delay time difference from trxd to bus between data_0 and data_1; as_normal [2] ? 5- +5ns t d(txen-busact) delay time from txen to bus active as_normal; from idle to active - - 150 ns t d(txen-busidle) delay time from txen to bus idle as_ normal; from active to idle - - 150 ns t d(txen-rxd) delay time from txen to rxd - - 150 ns t d(trxd-busact) delay time from trxd to bus active t det(act)(trxd) + t d(trxd-bus) --275ns t d(trxd-busidle) delay time from trxd to bus idle t det(idle)(trxd) + t d(trxd-bus) --275ns t d(busact-trxd) delay time from bus active to trxd t det(act)(bus) + t d(bus-trxd) --285ns t d(busidle-trxd) delay time from bus idle to trxd t det(idle)(bus) + t d(bus-trxd) --275ns t d(trxdact-rxd) delay time from trxd activity detection to rxd t det(act)(trxd) + t d(trxd-rxd) --260ns t d(busact-bus) delay time from bus active to bus from one branch to another, including activity detection time; t det(act)(bus) + t d(bus-bus) --310ns t d(busidle-bus) delay time from bus idle to bus from one branch to another, including idle detection time; t det(idle)(bus) + t d(bus-bus) --300ns receive path t d(bus-trxd) delay time from bus to trxd as_normal; see figure 11 data_0 - - 75 ns data_1 - - 75 ns ? t d(bus-trxd) delay time difference from bus to trxd between data_0 and data_1 as_ normal; v cm =2.5v r pu =200 ? [2] [3] ? 5- +5ns table 15. dynamic characteristics ?continued all parameters are guaranteed for v bat = 4.45 v to 60 v; v cc = 4.45 v to 5.25 v; v buf = 4.45 v to 5.25 v; v io = 2.55 v to 5.25 v; t vj = ? 40 ? c to + 150 ? c; r bus = 40 ? , c bus = 100 pf; c rxd = 15 pf; c trxd0 = c trxd1 = 50 pf and c sdo = 50 pf unless otherwise specified. all voltages are defined with respect to ground; positive currents flow into the ic. symbol parameter conditions min typ max unit
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 44 of 62 nxp semiconductors tja1086 flexray active star coupler t d(bus-rxd) delay time from bus to rxd as_normal; see figure 11 data_0 - - 75 ns data_1 - - 75 ns ? t d(bus-rxd) delay time difference from bus to rxd between data_0 and data_1 as_ normal; v cm = 2.5 v [2] [3] ? 5- +5ns t d(trxd-rxd) delay time from trxd to rxd as_normal; see figure 12 data_0 - - 60 ns data_1 - - 60 ns ? t d(trxd-rxd) delay time difference from trxd to rxd between data_0 and data_1 as_ normal ? 5- +5ns t d(txd-rxd) delay time from txd to rxd as_normal; see figure 10 [1] data_0 - 3060ns data_1 - 3060ns t d(bus-bus) delay time from bus to bus from one branch to another as_normal; see figure 11 data_0 - - 100 ns data_1 - - 100 ns ? t d(bus-bus) delay time difference from bus to bus between data_0 and data_1 as_ normal ? 8- +8ns bus slope t r(dif)(bus) bus differential rise time data_0 to data_1; 20 % to 80 % 6 - 18.75 ns data_0 to idle; ? 300 mv to ? 30 mv - - 30 ns t f(dif)(bus) bus differential fall time data_1 to data_0; 20 % to 80 % 6 - 18.75 ns data_1 to idle; 300 mv to 30 mv - - 30 ns idle to data_0; ? 30 mv to ? 300 mv - - 30 ns ? t (r-f)(dif) difference between differential rise and fall time between data_0 and data_1 ? 3- +3ns pin rxd t r rise time 20 % to 80 % - - 9 ns t f fall time 80 % to 20 % - - 9 ns t (r+f) sum of rise and fall time 20 % to 80 % and 80 % to 20 % - - 13 ns ? t (r-f) difference between rise and fall time 20 % to 80 % ? 5- +5ns pin rstn t det(rst) reset detection time 5 - 20 ? s pin bge t d(bge-busact) delay time from bge to bus active activity detected on txen - - 100 ns t d(bge-busidle) delay time from bge to bus idle activity detected on txen - - 100 ns table 15. dynamic characteristics ?continued all parameters are guaranteed for v bat = 4.45 v to 60 v; v cc = 4.45 v to 5.25 v; v buf = 4.45 v to 5.25 v; v io = 2.55 v to 5.25 v; t vj = ? 40 ? c to + 150 ? c; r bus = 40 ? , c bus = 100 pf; c rxd = 15 pf; c trxd0 = c trxd1 = 50 pf and c sdo = 50 pf unless otherwise specified. all voltages are defined with respect to ground; positive currents flow into the ic. symbol parameter conditions min typ max unit
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 45 of 62 nxp semiconductors tja1086 flexray active star coupler activity detection t det(act)(txen) activity detection time on pin txen as_normal; from idle to active 20 - 70 ns t det(idle)(txen) idle detection time on pin txen as_normal; from active to idle 20 - 70 ns ? t det(act-idle) difference between active and idle detection time on pin txen as_normal ? 25 - +25 ns on pin trxd pins trxd0 and trxd1; as_normal ? 50 - +50 ns on bus as_normal ? 50 - +50 ns t det(act)(trxd) activity detection time on pin trxd pins trxd0 and trxd1; as_normal; from idle to active 100 - 200 ns t det(idle)(trxd) idle detection time on pin trxd pins trxd0 and trxd1; as_normal; from active to idle 100 - 200 ns t det(act)(bus) activity detection time on bus pins as_normal; from idle to active 100 - 210 ns t det(idle)(bus) idle detection time on bus pins as_normal; from active to idle 100 - 200 ns t det(int) interrupt detection time from interrupt detection to falling edge on intn --100 ? s t intnh(min) minimum intn high time 10 - 40 ? s wake-up detection t det(wake)data_0 data_0 wake-up detection time ? 10 v ? v cm ? +15 v [3] 1-4 ? s t det(wake)idle idle wake-up detection time ? 10 v ? v cm ? +15 v [3] 1-4 ? s t det(wake)tot total wake-up detection time ? 10 v ? v cm ? +15 v [3] 50 - 115 ? s t sup(int)wake wake-up interruption suppression time ? 10 v ? v cm ? +15 v [3] 130 - 1000 ns t d(bus)(wake-act) bus delay time from wake-up to active --18 ? s t det(wake)(lwu) wake-up detection time on pin lwu 2.9 - 175 ? s t det(wake)(trxd) wake-up detection time on pin trxd falling edge on trxd_0 or trxd_1 100 - 400 ns t d(lwuwake-inhh) delay time from lwu wake-up to inh high falling edge on lwu to inh high as_sleep; 5.5 v < v bat < 27 v r l(inh-gnd) = 100 k ? [4] 2.9 - 100 ? s falling edge on lwu to inh high as_sleep; 27 v < v bat < 60 v r l(inh-gnd) = 100 k ? [4] --175 ? s t d(buswake-inhh) delay time from bus wake-up to inh high as_sleep; v bat > 5.5 v r l(inh-gnd) = 100 k ? [4] --55 ? s t d(buswake-intnl) delay time from bus wake-up to intn low as_sleep; as_standby v bat > 5.5 v --10 ? s t d(trxdwake-inhh) delay time from trxd wake-up to inh high falling edge on trxdx to inh high as_sleep; r l(inh-gnd) = 100 k ? [4] --55 ? s table 15. dynamic characteristics ?continued all parameters are guaranteed for v bat = 4.45 v to 60 v; v cc = 4.45 v to 5.25 v; v buf = 4.45 v to 5.25 v; v io = 2.55 v to 5.25 v; t vj = ? 40 ? c to + 150 ? c; r bus = 40 ? , c bus = 100 pf; c rxd = 15 pf; c trxd0 = c trxd1 = 50 pf and c sdo = 50 pf unless otherwise specified. all voltages are defined with respect to ground; positive currents flow into the ic. symbol parameter conditions min typ max unit
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 46 of 62 nxp semiconductors tja1086 flexray active star coupler [1] sum of rise and fall times on txd (20 % to 80 % on v io ) is 9 ns (max). [2] guaranteed for v bus(dif) = ?300 mv and v bus(dif) = ? 150 mv; v bus(dif) is the differential bus voltage, v bp -v bm . [3] v cm is the bp/bm common mode voltage (v cm =(v bp + v bm )/2). [4] defined for v inh =2v. bus error diagnosis t to(bft) bft time-out time 80 - 180 ns clamp detection t detcl(bus) bus clamp detection time 650 - 2600 ? s t detcl(trxd) trxd clamp detection time 650 - 2600 ? s t detcl(txen) txen clamp detection time 650 - 2600 ? s t det(col)(trxd) trxd collision detection time 40 - 120 ns transition timing t to_stargotosleep dstargotosleep time-out time 640 - 6400 ms t t(bnorm-bdis) branch normal to branch disabled transition time as_normal; after a host ?branch_disabled? command; rising edge on scsn to transmitter deactivated --1 ? s t t(bdis-bnorm) branch disabled to branch normal transition time as_normal; after a host ?branch_normal? command; rising edge on scsn to transmitter activated --1 ? s t t(bnorm-btx2) branch normal to branch txonly2 transition time as_normal; after a host ?branch_txonly? command; rising edge on scsn to deactivating receive function --1 ? s t t(btx2-bnorm) branch txonly2 to branch normal transition time as_normal; after a host ?branch_normal? command; rising edge on scsn to activating receive function --1 ? s t t(moch) mode change transition time after host command as_sleep to as_standby rising edge on scsn to rising edge on inh --25 ? s table 15. dynamic characteristics ?continued all parameters are guaranteed for v bat = 4.45 v to 60 v; v cc = 4.45 v to 5.25 v; v buf = 4.45 v to 5.25 v; v io = 2.55 v to 5.25 v; t vj = ? 40 ? c to + 150 ? c; r bus = 40 ? , c bus = 100 pf; c rxd = 15 pf; c trxd0 = c trxd1 = 50 pf and c sdo = 50 pf unless otherwise specified. all voltages are defined with respect to ground; positive currents flow into the ic. symbol parameter conditions min typ max unit
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 47 of 62 nxp semiconductors tja1086 flexray active star coupler fig 10. timing diagram when the cc interface is the input channel t t d(txd-bus)(data_1) t d(txd-trxd)(data_1) t d(txd-bus)(data_0) t bus branches 1 - 2 v ol(dif) -300 mv 0 mv +300 mv v ol(dif) trxd1 100 % v buf 50 % v buf 0 % v buf 015aaa432 trxd0 100 % v buf 50 % v buf 0 % v buf t d(txd-trxd)(data_0) t t t t d(txd-rxd)(data_0) rxd 100 % v io 50 % v io 0 % v io t d(txd-rxd)(data_1) txd 100 % v io 50 % v io 0 % v io 100 ns to 4400 ns
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 48 of 62 nxp semiconductors tja1086 flexray active star coupler (1) v dif = 400 mv to 3000 mv. (2) t r and t f , defined between ? 300 mv, are both 22.5 ns for bus amplitudes of 800 mv (max), and lower for higher bus amplitudes. fig 11. timing diagram when one of the branches is the input channel t +v diff (1) +300 mv +150 mv 0 v -150 mv bus branch n -v diff (1) t f (2) t r (2) max 22,5 ns max 22,5 ns +300 mv -300 mv 0 v bus branch m -v ol(dif) +v oh(dif) t d(bus-bus)(data_0) t d(bus-bus)(data_1) 60 ns to 4340 ns -300 mv trxd0 100 % v buf 50 % v buf 0 % v buf t d(bus-trxd)(data_0) t t d(bus-trxd)(data_1) t trxd1 100 % v buf 50 % v buf 0 % v buf t rxd 100 % v io 50 % v io 0 % v io t d(bus-rxd)(data_1) t d(bus-rxd)(data_0) 015aaa173
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 49 of 62 nxp semiconductors tja1086 flexray active star coupler fig 12. timing diagram when the internal bus (trxd0/1) is the input channel trxd0 100 % v buf 50 % v buf 0 % v buf t trxd1 100 % v buf 50 % v buf 0 % v buf t t t d(trxd-bus)(data_1) t d(trxd-bus)(data_0) bus branches 1 - 2 v ol(dif) -300 mv 0 mv +300 mv v ol(dif) t t d(trxd-rxd)(data_0) rxd 100 % v io 50 % v io 0 % v io t d(trxd-rxd)(data_1) 015aaa433
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 50 of 62 nxp semiconductors tja1086 flexray active star coupler fig 13. spi timing 015aaa177 scsn sclk sdi sdo x x x msb lsb msb lsb t d(sclk-sdo) floating floating t h(d) t su(d) t spilead t cy(clk) t spilag t wh(s)
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 51 of 62 nxp semiconductors tja1086 flexray active star coupler 11. package outline fig 14. package outline sot1113-1 (hvqfn44) references outline version european projection issue date iec jedec jeita sot1113-1 - - - - - - - - - sot1113-1_po 09-07-17 10-07-23 unit mm max nom min 1.00 0.85 0.80 0.05 0.03 0.00 0.2 9.1 9.0 8.9 7.25 7.15 7.05 9.1 9.0 8.9 0.65 6.5 0.63 0.55 0.47 01 a (1) dimensions note 1. plastic or metal protrusions of 0.075 mm maximum per side are not included. hvqfn44: plastic thermal enhanced very thin quad flat package; no leads 44 terminals; body 9 x 9 x 0.85 mm sot1113-1 a 1 b 0.35 0.30 0.25 cd (1) d h e (1) e h 7.25 7.15 7.05 ee 1 e 2 6.5 lv 0.1 w 0.05 y 0.08 y 1 0 5 10 mm scale b a d e terminal 1 index area c y c y 1 x detail x a a 1 c e 2 e 1 e e b ac b ? v c ? w d h e h 1 11 12 l 22 23 33 44 34 terminal 1 index area
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 52 of 62 nxp semiconductors tja1086 flexray active star coupler 12. soldering of smd packages this text provides a very brief insight into a complex technology. a more in-depth account of soldering ics can be found in application note an10365 ?surface mount reflow soldering description? . 12.1 introduction to soldering soldering is one of the most common methods through which packages are attached to printed circuit boards (pcbs), to form electr ical circuits. the soldered joint provides both the mechanical and the electrical connection. th ere is no single sold ering method that is ideal for all ic packages. wave soldering is often preferred when through-hole and surface mount devices (smds) are mixed on one printed wiring board; however, it is not suitable for fine pitch smds. reflow soldering is ideal for the small pitches and high densities that come with increased miniaturization. 12.2 wave and reflow soldering wave soldering is a joining technology in which the joints are made by solder coming from a standing wave of liquid solder. the wave soldering process is suitable for the following: ? through-hole components ? leaded or leadless smds, which are glued to the surface of the printed circuit board not all smds can be wave soldered. packages with solder balls, and some leadless packages which have solder lands underneath the body, cannot be wave soldered. also, leaded smds with leads having a pitch smaller than ~0.6 mm cannot be wave soldered, due to an increased pr obability of bridging. the reflow soldering process involves applying solder paste to a board, followed by component placement and exposure to a temperature profile. leaded packages, packages with solder balls, and leadless packages are all reflow solderable. key characteristics in both wave and reflow soldering are: ? board specifications, in cluding the board finish , solder masks and vias ? package footprints, including solder thieves and orientation ? the moisture sensitivit y level of the packages ? package placement ? inspection and repair ? lead-free soldering versus snpb soldering 12.3 wave soldering key characteristics in wave soldering are: ? process issues, such as application of adhe sive and flux, clinching of leads, board transport, the solder wave parameters, and the time during which components are exposed to the wave ? solder bath specifications, including temperature and impurities
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 53 of 62 nxp semiconductors tja1086 flexray active star coupler 12.4 reflow soldering key characteristics in reflow soldering are: ? lead-free versus snpb solderi ng; note that a lead-free reflow process usually leads to higher minimum peak temperatures (see figure 15 ) than a snpb process, thus reducing the process window ? solder paste printing issues including smearing, release, and adjusting the process window for a mix of large and small components on one board ? reflow temperature profile; this profile includ es preheat, reflow (in which the board is heated to the peak temperature) and cooling down. it is imperative that the peak temperature is high enough for the solder to make reliable solder joints (a solder paste characteristic). in addition, the peak temperature must be low enough that the packages and/or boards are not damaged. the peak temperature of the package depends on package thickness and volume and is classified in accordance with ta b l e 1 6 and 17 moisture sensitivity precautions, as indicat ed on the packing, must be respected at all times. studies have shown that small packages reach higher temperatures during reflow soldering, see figure 15 . table 16. snpb eutectic process (from j-std-020d) package thickness (mm) package reflow temperature ( ?c) volume (mm 3 ) < 350 ? 350 < 2.5 235 220 ? 2.5 220 220 table 17. lead-free process (from j-std-020d) package thickness (mm) package reflow temperature ( ?c) volume (mm 3 ) < 350 350 to 2000 > 2000 < 1.6 260 260 260 1.6 to 2.5 260 250 245 > 2.5 250 245 245
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 54 of 62 nxp semiconductors tja1086 flexray active star coupler for further information on temperature profiles, refer to application note an10365 ?surface mount reflow soldering description? . msl: moisture sensitivity level fig 15. temperature profiles for large and small components 001aac844 temperature time minimum peak temperature = minimum soldering temperature maximum peak temperature = msl limit, damage level peak temperature
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 55 of 62 nxp semiconductors tja1086 flexray active star coupler 13. appendix: epl 3.0.1 to tja1086 parameter conversion table 18. epl 3.0.1 to tja1086 conversion epl 3.0.1 tja1086 symbol min max unit symbol min max unit dbustx01 6 18.75 ns t r(dif)(bus) 6 18.75 ns dbustx10 6 18.75 ns t f(dif)(bus) 6 18.75 ns ustartxactive 600 2000 mv ?v oh(dif) ?, ?v ol(dif) ? 900 2000 mv ustartxidle 0 30 mv ?v o(idle)(dif) ? 025mv dbranchrxactivemax 650 2600 ? st detcl(bus) 650 2600 ? s r cm1 , r cm2 10 40 k ? r i (pins bp and bm) 10 40 k ? ucm ? 10 +15 v v cm [1] ? 10 +15 v ustaruvv bat 45.5vv uvd(vbat) 4.45 4.715 v ustaruvv cc 4-vv uvd(vcc) 4.45 4.715 v dstaruvv cc -1000mst det(uv)(vcc) 5100 ? s ibp leak -25 ? a ?i li(bp) ? -5 ? a ibm leak -25 ? a ?i li(bm) ? -5 ? a ibm gndshortmax -60ma ?i o(sc) ? (pin bm) - 60 ma ibp gndshortmax -60ma ?i o(sc) ? (pin bp) - 60 ma ibm bat48shortmax -72ma ?i o(sc) ? (pin bm) - 72 ma ibp bat48shortmax -72ma ?i o(sc) ? (pin bp) - 72 ma ibm bat27shortmax -60ma ?i o(sc) ? (pin bm) - 60 ma ibp bat27shortmax -60ma ?i o(sc) ? (pin bp) - 60 ma functional class: active star - bus guardian interface implemented (see section 2.4 ) dstardelay10 - 150 ns t d(bus-trxd) + t d(trxd-bus) -150ns dstardelay01 - 150 ns t d(bus-trxd) + t d(trxd-bus) -150ns dstarasym 0 8 ns ?? t d(bus-bus) ? -8ns dstarasym2 0 10 ns ?? t d(bus-trxd) ? + ?? t d(trxd-bus) ? -10ns dstarsetupdelay - 500 ns t det(act)(txen) +t d(txd-trxd) 20 110 ns t det(act)(bus) + t d(bus-trxd) 100 285 ns dstargotosleep 640 6400 ms t to_stargotosleep 640 6400 ms dstarwakeupreactiontime - 70 ? st d(bus)(wake-act) -18 ? s device qualification according to aec-q100 (rev. f) see section 2.1 t amb_class1 ? 40 +125 ?ct amb ? 40 +125 ?c ibm -5vshortmax -60ma ?i o(sc) ? (pin bm) - 60 ma ibp -5vshortmax -60ma ?i o(sc) ? (pin bp) - 60 ma functional class: active star - voltage regulator control implemented (see section 2.4 ) ibm bpshortmax -60ma ?i o(sc) ? (bp to bm) - 60 ma ibp bmshortmax -60ma ?i o(sc) ? (bm to bp) - 60 ma ibm bat60shortmax -90ma ?i o(sc) ? (pin bp) - 72 ma ibp bat60shortmax -90ma ?i o(sc) ? (pin bm) - 72 ma ubias - non-low power 1800 3200 mv v o(idle)(bp) , v o(idle)(bm) [2] 1800 3150 mv ubias - low power ? 200 +200 mv v o(idle)(bp) , v o(idle)(bm) [3] ? 100 +100 mv
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 56 of 62 nxp semiconductors tja1086 flexray active star coupler dstaruvv bat -1000mst det(uv)(vbat) 5150 ? s ustaruvv io 2-vv uvd(vio) 2.55 2.765 v dstaruvv io -1000mst det(uv)(vio) 5100 ? s uinh1 not_sleep uvbat ? 1 v -vv oh (pin inh) v bat ? 0.8 v v bat v iinh1 leak -10 ? ai l (pin inh) ? 3+3 ? a dstartsslengthchange ? 450 0 ns ? (t det(act)(bus) + t det(act)(trxd) ) ? 410 - ns ? t det(act)(bus) - ? 100 ns dstarfes1lengthchange 0 450 ns t det(idle)(bus) 100 - ns t det(idle)(bus) + t det(idle)(trxd) -400ns dstaruvv supply -1mst det(uv)(vbuf) 5100 ? s dstarrv supply -10mst rec(uv)(vbuf) 5100 ? s ustaruvv supply 4-vv uvd(vbuf) 4.2 4.474 v dstarrv bat -10mst rec(uv)(vbat) 5150 ? s dstarrv cc -10mst rec(uv)(vcc) 5100 ? s dstarrv io -10mst rec(uv)(vio) 5100 ? s dwu interrupt 0.13 1 ? st sup(int)wake 130 1000 ns dwu 0detect 14 ? st det(wake)data_0 14 ? s dwu idledetect 14 ? st det(wake)idle 14 ? s dwu timeout 48 140 ? st det(wake)tot 50 115 ? s dstarwakepulsefilter 1 500 ? st det(wake)(lwu) 2.9 175 ? s ibp leakgnd -1600 ? a ?i li(bp) ? -1600 ? a ibm leakgnd -1600 ? a ?i li(bm) ? -1600 ? a dstarwakeupreaction local -100 ? st d(lwuwake-inhh) 0100 ? s dstarsymbollengthchange ? 300 +450 ns ? t det(act-idle)(bus) + ? t det(act-idle)(trxd) ? 100 +100 ns functional class: active star - logic level adaptation implemented (see section 2.4 ) functional class: active star - increased voltage amplitude transmitter implemented (see section 2.4 ) uesd ext 6-kv ?v esd ? : hbm on pins bp and bm to gnd 8-kv ?v esd ? : hbm on pins lwu and v bat to gnd 6-kv uesd int 2-kv ?v esd ? (hbm on any other pin) 4 - kv uesd iec 6 - kv iec61000-4-2 on pins bp and bm to gnd 6-kv uv bat-wake -7vv bat 4.75 60 v dbustxai - 30 ns t r(dif)(bus) (data_0 to idle) - 30 ns dbustxia - 30 ns t f(dif)(bus) (idle to data_0) - 30 ns valid operating modes when v starsupply = nominal; v bat ? 7v; v cc =nominal as_sleep, as_standby, as_normal table 18. epl 3.0.1 to tja1086 conversion ?continued epl 3.0.1 tja1086 symbol min max unit symbol min max unit
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 57 of 62 nxp semiconductors tja1086 flexray active star coupler valid operating modes when v starsupply = nominal; v bat ? 5.5 v; v cc =nominal as_sleep, as_standby, as_normal dbustxdif - 3 ns ?? t (r-f)(dif) ? -3ns r startransmitter product-specific z o(eq)(tx) 10 600 ? dstarsymbolendlengthchange 0 450 ns t det(idle)(bus) 100 - ns t det(idle)(bus) + t det(idle)(trxd) -400ns active star with communication controller interface dstarrxasym - 10 ns ?? t d(bus-trxd) ? + ?? t d(trxd-rxd) ? -10ns dstarrx10 - 225 ns t d(bus-trxd) + t d(trxd-rxd) -135ns dstarrx01 - 225 ns t d(bus-trxd) + t d(trxd-rxd) -135ns dstarrxai 50 550 ns t det(idle)(bus) + t d(bus-rxd) 100 - ns t det(idle)(bus) + t d(bus-trxd) + t det(idle)(trxd) + t d(trxd-rxd) -535ns dstarrxia 100 550 ns t det(act)(bus) + t d(bus-rxd) 100 - ns t det(act)(bus) + t d(bus-trxd) + t det(act)(trxd) + t d(trxd-rxd) -545ns dstartxasym - 10 ns ?? t d(txd-trxd) ? + ?? t d(trxd-bus) ? -10ns dstartx10 - 225 ns t d(txd-trxd) + t d(trxd-bus) -135ns dstartx01 - 225 ns t d(txd-trxd) + t d(trxd-bus) -135ns dstartxai - 550 ns t det(idle)(txen) + t d(txd-trxd) + t det(idle)(trxd) + t d(trxd-bus) -385ns dstartxia - 550 ns t det(act)(txen) + t d(txd-trxd) + t det(act)(trxd) + t d(trxd-bus) -385ns uv dig-out-high 80 100 % v oh (pin rxd) v io ? 0.4 v io v uv dig-out-low -20%v ol (pin rxd) - 0.4 v uv dig-in-high -70%v ih (pins txen and bge) 0.7v io 5.5 v uv dig-in-low 30 - % v il (pins txen and bge) ? 0.3 0.3v io v udata0 ? 300 ? 150 mv v il(dif) (pins bp and bm) ? 300 ? 150 mv udata1 150 300 mv v ih(dif) (pins bp and bm) 150 300 mv udata1 - |udata0| ? 30 +30 mv ? v i(dif)(h-l) ? 30 +30 mv ustarlogic_1 - 60 % v ih (pin txd) 0.6v io 5.5 v ustarlogic_0 40 - % v il (pin txd) ? 0.3 0.4v io v dstarrxd r15 + dstarrxd f15 -13nst (r+f) (pin rxd) - 13 ns functional class: active star - communication controller interface implemented dstartxrxai - 325 ns t d(txen-rxd) -150ns c_startxd - 10 pf c i (pin txd) - 10 pf uv dig-out-uv -500mvv o (pin rxd) [4] -500mv udata0_lp ? 400 ? 100 mv v il(dif) (pins bp and bm) ? 400 ? 125 mv uv dig-out-off product specific v o (pin rxd) [5] v io ? 500 v io mv table 18. epl 3.0.1 to tja1086 conversion ?continued epl 3.0.1 tja1086 symbol min max unit symbol min max unit
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 58 of 62 nxp semiconductors tja1086 flexray active star coupler [1] v cm is the bp/bm common mode voltage, (v bp +v bm )/2, and is specified in conditions column for parameters v ih(dif) and v il(dif) for pins bp and bm; see table 14 . v cm is tested on a receiving bus driver with a transmi tting bus driver that has a ground offset voltage in the range ? 12.5 v to +12.5 v and transmits a 50/50 pattern. [2] min: v o(idle)(bp) =v o(idle)(bm) = 0.4v buf = 0.4 ? 4.5 v = 1800 mv; max value: v o(idle)(bp) =v o(idle)(bm) = 0.6v buf = 0.6 ?? 5.25 v = 3150 mv; the nominal voltage is 2500 mv. [3] the nominal voltage is 0 mv. [4] when undervoltage on v io [5] when v cc =v bat =v buf =0v. dstartsslengthchange_txd_bus ? 450 0 ns ? (t det(act)(txen) + t det(act)(trxd) ) ? 250 - ns ? t det(act)(txen) - ? 20 ns dstarfes1lengthchange_txd_bus 0 450 ns t det(idle)(txen) 20 - ns t det(idle)(txen) + t det(idle)(trxd) -250ns dstarsymbollengthchange_txd_bus ? 300 +400 ns ? t det(act-idle)(txen) + ? t det(act-idle)(trxd) ? 75 +75 ns dstartsslengthchange_bus_rxd ? 450 0 ns ? (t det(act)(bus) + t det(act)(trxd) ) ? 410 - ns ? t det(act)(bus) - ? 100 ns dstarfes1lengthchange_bus_rxd 0 450 ns t det(idle)(bus) 100 - ns t det(idle)(bus) + t det(idle)(trxd) -400ns dstarsymbollengthchange_bus_rxd ? 300 +400 ns ? t det(act-idle)(bus) + ? t det(act-idle)(trxd) ? 100 +100 ns dstaractivitydetection 100 250 ns t det(act)(bus) 100 210 ns dstaridledetection 50 200 ns t det(idle)(bus) 100 200 ns |dstarrxd r15 - dstarrxd f15 |-5ns ?? t (r-f) ? (pin rxd) - 5 ns dstartxactivemax 650 2600 ? st detcl(txen) 650 2600 ? s dstartx reaction -75nst det(idle)(txen) 20 50 ns active star with host interface dstarmodechange spi -100 ? st t(moch) -25 ? s dstarreactiontime spi -200 ? st det(int) -100 ? s uv dig-out-high 80 100 % v oh (pin sdo) v io ? 0.4 v io v uv dig-out-low -20%v ol (pins sdo, intn) - 0.4 v uv dig-in-high -70%v ih (pins sdi, scsn, sclk) 0.7v io 5.5 v uv dig-in-low 30 - % v il (pins sdi, scsn, sclk) ? 0.3 0.3v io v functional class: active st ar - host interface implemented spi 0.01 1 mbit/s t cl(clk) 0.5 100 ? s uv dig-out-uv -500mvv o (pins sdo, intn) [4] -500mv uv dig-out-off product specific v o (pins sdo, intn) [5] -500mv behavior when sck not connected pull-down behavior on sclk behavior when sdi not connected pull-down behavior on sdi behavior when scsn not connected pull-up behavior on scsn table 18. epl 3.0.1 to tja1086 conversion ?continued epl 3.0.1 tja1086 symbol min max unit symbol min max unit
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 59 of 62 nxp semiconductors tja1086 flexray active star coupler 14. abbreviations 15. references [1] epl ? flexray communications system electrical physical layer specification version 3.0.1, flexray consortium 16. revision history table 19. abbreviations abbreviation description cc communication controller ecu engine control unit emc electro magnetic compatibility esd electrostatic discharge table 20. revision history document id release date data sheet status change notice supersedes tja1086 v.1 20130418 product data sheet - -
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 60 of 62 nxp semiconductors tja1086 flexray active star coupler 17. legal information 17.1 data sheet status [1] please consult the most recently issued document before initiating or completing a design. [2] the term ?short data sheet? is explained in section ?definitions?. [3] the product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple device s. the latest product status information is available on the internet at url http://www.nxp.com . 17.2 definitions draft ? the document is a draft versi on only. the content is still under internal review and subject to formal approval, which may result in modifications or additions. nxp semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall hav e no liability for the consequences of use of such information. short data sheet ? a short data sheet is an extract from a full data sheet with the same product type number(s) and title. a short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. for detailed and full information see the relevant full data sheet, which is available on request vi a the local nxp semiconductors sales office. in case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. product specification ? 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stress above one or more limiting values (as defined in the absolute maximum ratings system of iec 60134) will cause permanent damage to the device. limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the recommended operating conditions section (if present) or the characteristics sections of this document is not warranted. constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. terms and conditions of commercial sale ? nxp semiconductors products are sold subject to the gener al terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms , unless otherwise agreed in a valid written individual agreement. in case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. nxp semiconductors hereby expressly objects to applying the customer?s general terms and conditions with regard to the purchase of nxp semiconducto rs products by customer. document status [1] [2] product status [3] definition objective [short] data sheet development this document contains data from the objecti ve specification for product development. preliminary [short] data sheet qualification this document contains data from the preliminary specification. product [short] data sheet production this document contains the product specification.
tja1086 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 1 ? 18 april 2013 61 of 62 nxp semiconductors tja1086 flexray active star coupler no offer to sell or license ? nothing in this document may be interpreted or construed as an offer to sell products t hat is open for acceptance or the grant, conveyance or implication of any licens e under any copyrights, patents or other industrial or intellectual property rights. export control ? this document as well as the item(s) described herein may be subject to export control regu lations. export might require a prior authorization from competent authorities. translations ? a non-english (translated) version of a document is for reference only. the english version shall prevail in case of any discrepancy between the translated and english versions. 17.4 licenses 17.5 trademarks notice: all referenced brands, produc t names, service names and trademarks are the property of their respective owners. 18. contact information for more information, please visit: http://www.nxp.com for sales office addresses, please send an email to: salesaddresses@nxp.com nxp ics with flexray functionality this nxp product contains functionalit y that is compliant with the flexray specifications. these specifications and the material contained in them, as released by the flexray consortium, are for the purpose of information only. the flexray consortium and the companies that have contributed to the specifications shall not be liable for any use of the specifications. the material contained in these specific ations is protect ed by copyright and other types of intellectual property rights. the commercial exploitation of the material contained in the specifications requires a license to such intellectual property rights. these specifications may be utilized or reproduced without any modification, in any form or by any means, for informational purposes only. for any other purpose, no part of the specifications may be utilized or reproduced, in any form or by any means, without permission in writing from the publisher. the flexray specifications ha ve been developed for automotive applications only. they have neither been developed nor tested for non-automotive applications. the word flexray and the flexray logo are registered trademarks.
nxp semiconductors tja1086 flexray active star coupler ? nxp b.v. 2013. all rights reserved. for more information, please visit: http://www.nxp.com for sales office addresses, please se nd an email to: salesaddresses@nxp.com date of release: 18 april 2013 document identifier: tja1086 please be aware that important notices concerning this document and the product(s) described herein, have been included in section ?legal information?. 19. contents 1 general description . . . . . . . . . . . . . . . . . . . . . . 1 2 features and benefits . . . . . . . . . . . . . . . . . . . . 1 2.1 general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.2 functional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.3 robustness. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.4 active star functional classes . . . . . . . . . . . . . . 2 3 ordering information . . . . . . . . . . . . . . . . . . . . . 2 4 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5 pinning information . . . . . . . . . . . . . . . . . . . . . . 4 5.1 pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5.2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 6 functional description . . . . . . . . . . . . . . . . . . . 6 6.1 supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . 6 6.2 host control (hc) and autonomous power (ap) modes - apm flag . . . . . . . . . . . . . 6 6.3 signal router . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6.3.1 trxd collision . . . . . . . . . . . . . . . . . . . . . . . . . 6 6.4 wake-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6.4.1 remote wake-up . . . . . . . . . . . . . . . . . . . . . . . 7 6.4.1.1 bus wake-up via wake-up pattern. . . . . . . . . . . 7 6.4.1.2 bus wake-up via dedicated flexray data frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6.4.2 local wake-up via pin lwu . . . . . . . . . . . . . . . 9 6.4.3 wake-up via the trxd0/1 interface . . . . . . . . . 9 6.5 communication controller interface . . . . . . . . 10 6.5.1 bus activity and idle detection . . . . . . . . . . . . 10 6.6 bus error detection . . . . . . . . . . . . . . . . . . . . . 11 6.7 interrupt generation . . . . . . . . . . . . . . . . . . . . 11 6.8 operating modes . . . . . . . . . . . . . . . . . . . . . . 12 6.8.1 operating mode transitions . . . . . . . . . . . . . . 12 6.8.1.1 as_poweroff . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.8.1.2 as_reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.8.1.3 as_standby . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.8.1.4 as_sleep . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.8.1.5 as_normal . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.8.1.6 operatin g mode transition diagram . . . . . . . . 15 6.9 branch operating modes . . . . . . . . . . . . . . . . 16 6.9.1 branch operating mode transitions . . . . . . . . . 16 6.9.1.1 branch_off . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6.9.1.2 branch_lowpower . . . . . . . . . . . . . . . . . . . . . 16 6.9.1.3 branch_disabled . . . . . . . . . . . . . . . . . . . . . . 17 6.9.1.4 branch_failsilent . . . . . . . . . . . . . . . . . . . . . . 17 6.9.1.5 branch_txonly1 . . . . . . . . . . . . . . . . . . . . . . . 17 6.9.1.6 branch_txonly2 . . . . . . . . . . . . . . . . . . . . . . . 17 6.9.1.7 branch_normal. . . . . . . . . . . . . . . . . . . . . . . . 17 6.9.1.8 branch oper ating mode transition diagram. . . 19 6.10 spi interface . . . . . . . . . . . . . . . . . . . . . . . . . . 20 6.10.1 register access . . . . . . . . . . . . . . . . . . . . . . . 20 6.10.2 spi registers . . . . . . . . . . . . . . . . . . . . . . . . . 20 6.10.2.1 control register . . . . . . . . . . . . . . . . . . . . . . . 22 6.10.2.2 configuration register. . . . . . . . . . . . . . . . . . . 23 6.10.2.3 interrupt status register . . . . . . . . . . . . . . . . . 25 6.10.2.4 general status register . . . . . . . . . . . . . . . . . 28 6.10.2.5 branch x status registers. . . . . . . . . . . . . . . . 31 7 limiting values . . . . . . . . . . . . . . . . . . . . . . . . 33 8 thermal characteristics . . . . . . . . . . . . . . . . . 34 9 static characteristics . . . . . . . . . . . . . . . . . . . 35 10 dynamic characteristics. . . . . . . . . . . . . . . . . 42 11 package outline. . . . . . . . . . . . . . . . . . . . . . . . 51 12 soldering of smd packages . . . . . . . . . . . . . . 52 12.1 introduction to soldering. . . . . . . . . . . . . . . . . 52 12.2 wave and reflow soldering. . . . . . . . . . . . . . . 52 12.3 wave soldering . . . . . . . . . . . . . . . . . . . . . . . 52 12.4 reflow soldering . . . . . . . . . . . . . . . . . . . . . . 53 13 appendix: epl 3.0.1 to tja1086 parameter conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 14 abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 59 15 references. . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 16 revision history . . . . . . . . . . . . . . . . . . . . . . . 59 17 legal information . . . . . . . . . . . . . . . . . . . . . . 60 17.1 data sheet status . . . . . . . . . . . . . . . . . . . . . . 60 17.2 definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 17.3 disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 60 17.4 licenses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 17.5 trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 61 18 contact information . . . . . . . . . . . . . . . . . . . . 61 19 contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

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