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________________________________________________________________________ http://www.union - ic.com rev. 0 2 jan .201 5 1 / 13 u m3301 1 - bit bidirectional voltage - level translator with auto direction s ensing um3301 b sot563 um3301da dfn6 1.451.0 gene ral description the um3301 b / um33 01da series is one channel level translator with auto direction sensing . this 1 - channel non - inverting trans lator uses two separate configurable power - supply rails. the a port is designed to track v cca . v cca accepts any supply voltage from 1.2v to 3.6v. the b port is designed to track v ccb . v ccb accepts any supply voltage from 1.65v to 5.5v. this allows for univ ersal low - voltage bidirectional translation between any of the 1.2 v, 1.5 v, 1.8 v, 2.5v, 3.3 v, and 5 v voltage nodes. both i/o ports are au to - sensing, thus no direction control pin is required, making it ideal for d ata tra nsfer between low - voltage asics /plds and higher voltage systems . the UM3301B/ u m3301da operates at a guaranteed data rate of 20 mbps over the entire specified operating voltage range. within specific voltage domains, higher data rates are up to 100mbps. when the output - enable (oe) input is low, all outputs are placed in the high - impedance state. the UM3301B /u m3301da is designed so that the oe input circuit is designed to track v cca . to ensure the high - impedance state during power up or power down, oe should be tied to g nd through a pull down res istor, the minimum value of the resistor is determined by the current - sourcing capability of the driver. the um3301da is available in 1.45 mm 1.0 mm dfn6 package while the um3301 b is packaged in a sot 563 package . applications features ? low - voltage asic level translation ? cell - p hone c r a dles ? portable pos systems ? portable communication devices ? low - cost serial interfaces ? cell - phones ? gps ? telecommunications equipment ? 1.2v to 3.6v on a port and 1.65v to 5.5 v on b port (v cca ccb ) ? v cc isolation feature C cc input i s at gnd, all outputs a re in the high - impedance state ? oe input circuit referenced to v cca ? low power consumption ? latch - u p performance exceeds 100ma ? 5 kv esd protection on b p orts
________________________________________________________________________ http://www.union - ic.com rev. 0 2 jan .201 5 2 / 13 u m3301 pin configurations top view pin description pin name function 1 v cca a - port supply voltage. 1.2vv cca 3.6v and v cca v ccb 2 gnd ground 3 a input/output a . referenced to v cca 4 b input/output b . referenced to v cc b 5 oe 3 - state output enable. pull oe low to place all outputs in 3 - state mode. referenced to v cca 6 v ccb b - port supply volt age. 1.65vv ccb 5.5v o rdering information part number packaging type marking code s hipping qty um330 1 b sot563 ba 30 00 pcs/ 7 i nch tape & reel um3301 da dfn 6 1. 45 1.0 ca 30 00 pcs/ 7 i nch tape & reel (top view) m: month code UM3301B sot563 (top view) m: month code um3301da dfn6 1.45 1.0 2 1 3 4 6 5 v c c a g n d a b o e v c c b 2 1 3 4 6 5 b a m 1 6 2 5 3 4 v c c a g n d a b o e v c c b c a m
________________________________________________________________________ http://www.union - ic.com rev. 0 2 jan .201 5 3 / 13 u m3301 absolute maximum ratings (note 1) over operating free - air temperature range (unless otherwise noted) symbol parameter v alue u nit v cc a supply voltage range - 0. 5 to + 4. 5 v v cc b supply voltage range - 0.5 to + 6.5 v v i input voltage range a ports - 0.5 to +4. 5 v b ports - 0.5 to +6.5 v o voltage range applied to any output in the high - impedance or power - off state a ports - 0.5 to +4. 5 v b ports - 0.5 to +6.5 v o voltage range applied to any output in the high or low state (note 2) a ports - 0.5 to ( v cca +0.5) v b ports - 0.5 to ( v ccb +0.5) i ik input clamp current v i 0 - 50 ma i ok output clamp current v o 0 - 50 ma i o continuous output current 50 ma continuous current through v cca , v ccb , or gnd 100 ma t op operating temperature range - 40 to +85 c t stg storage temperature range - 65 to +150 c note1. str esses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. exposure to absolute - maximum - rated conditions for extended periods may affect device reliability. note 2 . the value of v cca and v ccb are provided in the recommended operating conditions table. recommended operating co n dit i ons ( n ote 3, 4 ) symbol parameter v cca v ccb min max unit v cca supply voltage 1.2 3.6 v v ccb 1.65 5.5 v v ih high level input voltage data inputs 1.2v to 3.6v 1.65v to 5.5v v cci 0.65 (note 5 ) v cci v oe 1.2v to 3.6v 1.65v to 5.5v v cca 0.65 5.5 v v i l low level input voltage data inputs 1.2v to 3.6 v 1.65v to 5.5v 0 v cci 0.35 (note 5 ) v oe 1.2v to 3.6v 1.65v to 5.5v 0 v cca 0.35 v v o voltage range applied to any output in the high - impedance or power - off state a - po rt 1.2v to 3.6v 1.65v to 5.5v 0 3.6 v b - port 0 5.5 t/ v input transition rise or fall time a - port inputs 1.2v to 3.6v 1.65v to 5.5v 40 ns/v b - port inputs 1.2v to 3.6v 1.65v to 3.6 v 40 4. 5v to 5.5v 30 note 3 . the a and b sides of an unused data i/o pair must be held in the same state, i.e., both at v cci or both at gnd. note 4 . v cca must be less than or equal to v ccb and must not exceed 3.6 v. note 5 . v cci is the supply voltage associated with the input port.
________________________________________________________________________ http://www.union - ic.com rev. 0 2 jan .201 5 4 / 13 u m3301 electrical characteristics (note 6 , 7 ) over recommended operating free - air temperature range (unless otherwise noted) parameter test conditions v cca v ccb t a =25 - 40 to 85 unit min max min max v oha i oh = - 20a 1.2v 1.1 v 1.4v to 3.6v v cca - 0.4 v ola i ol =20a 1.2v 0.4 v 1.4v to 3.6v 0.4 v ohb i oh = - 20a 1.65v to 5.5v v ccb - 0.4 v v olb i ol =20a 1.65v to 5.5v 0.4 v i i oe v i =v cc i or gnd 1.2v to 3.6v 1.65v to 5.5v 1 2 a i off a port v i or v o =0 to 3.6v 0v 0v to 5.5v 1 2 a b port v i or v o =0 to 5.5v 0v to 3.6v 0v 1 2 i oz a or b port oe=gnd 1.2v to 3.6v 1.65v to 5.5v 1 2 a i cca v i =v cci or gnd i o =0 1.2v 1.65v to 5.5v 0. 06 a 1.4v to 3.6v 1.65v to 5.5v 5 3.6v 0v 2 0v 5.5v - 2 i ccb v i =v cci or gnd i o =0 1.2v 1.65v to 5.5v 3.4 a 1.4v to 3.6v 1.65v to 5.5v 5 3.6v 0v - 2 0v 5.5v 2 i cca +i ccb v i =v cci or gnd i o =0 1.2v 1.65v to 5.5v 3.5 a 1.4 v to 3.6v 1.65v to 5.5v 10 i ccza v i =v cci or gnd i o =0, oe=gnd 1.2v 1.65v to 5.5v 0.05 a 1.4v to 3.6v 1.65v to 5.5v 5 i cczb v i =v cci or gnd i o =0, oe=gnd 1.2v 1.65v to 5.5v 3.3 a 1.4v to 3.6v 1.65v to 5.5v 5 c i oe 1.2v to 3.6v 1.65v to 5.5v 4.5 pf c io a port 1.2v to 3.6v 1.65v to 5.5v 1 2 pf b port 1 5 note 6 . v cci is the supply voltage associated with the input port. note 7 . v cc o is the suppl y voltage associated with the out put port.
________________________________________________________________________ http://www.union - ic.com rev. 0 2 jan .201 5 5 / 13 u m3301 switching characteristics t a =+25 c , v cca = 1.2v parameter from (input) to (output) v ccb =1.8v v ccb =2.5v v ccb =3.3v v ccb =5v unit typ typ typ typ t pd a b 11 9.6 9.4 11.2 ns b a 12 10.8 10 10 t en oe a 0.5 0.5 0.5 0.5 s b 0.5 0.5 0.5 0.5 t dis oe a 114 118 118 114 ns b 480 450 265 160 t ra, t fa a port rise and fall time 5 5 5 5 n s t rb, t fb b port rise and fall time 3.2 2.9 2.8 3.2 ns t sk(o) channel - to - channel 0. 5 0.5 0.5 1. 5 ns max data rate 20 20 20 20 mb ps switching characteristics over recommended operating free - air temperature range, v cca = 1.5v0.1v (unless otherwise noted) parameter from (input) to (output) v ccb =1.8v 0.1 5v v ccb =2.5v 0. 2v v ccb =3.3v 0. 3v v ccb =5v 0. 5v unit min max min max min max min max t pd a b 2 15 1.2 11 1.1 10 1 10 ns b a 1 15 0. 9 12 0 .5 12 0.3 13 t en oe a 1 1 1 1 s b 1 1 1 1 t dis oe a 180 140 100 100 ns b 55 0 55 0 530 110 t ra, t fa a port rise and fall time 1. 5 5 .0 1.5 5.0 1.5 5.0 1.5 5.0 ns t rb, t fb b port rise and fall time 0.9 4.5 0.6 3. 5 0.5 3 .0 0.4 4.0 ns t sk(o) channel - to - channel 0.5 0.5 0.5 0.5 ns max data rate 40 40 40 40 mbps
________________________________________________________________________ http://www.union - ic.com rev. 0 2 jan .201 5 6 / 13 u m3301 switching characteristics over recommended operating free - air temperature range, v cca = 1. 8 v0.1 5 v (unless otherwise noted) parameter from (input) to (out put) v ccb =1.8v 0.15v v ccb =2.5v 0.2v v ccb =3.3v 0.3v v ccb =5v 0.5v unit min max min max min max min max t pd a b 1.6 12 1.4 10 1.3 9 1.2 9 ns b a 1.5 1 2 1.3 8. 5 1 8 0.9 8 t en oe a 1 1 1 1 s b 1 1 1 1 t dis oe a 130 130 130 100 ns b 200 5 50 450 200 t ra, t fa a port rise and fall time 1 4.2 1.1 4. 0 1.1 4. 0 1.1 4. 0 ns t rb, t fb b port rise and fall time 0.9 4 0.6 4 0 .5 4 0.4 4 ns t sk(o) channel - to - channel 0.5 0.5 0.5 0.5 ns max data rate 60 60 60 60 mbps switching characteristics over recommended operating free - air temperature range, v cca = 2.5 v0. 2 v (unless otherwise noted) parameter from (input) to (outpu t) v ccb =2.5v 0.2v v ccb =3.3v 0.3v v ccb =5v 0.5v unit min max min max min max t pd a b 1. 1 8.9 1 7.8 0.9 7.2 ns b a 1 .2 8.9 1.1 8 0.9 7.6 t en oe a 1 1 1 s dis oe a 150 150 150 ns b 200 300 250 t ra, t fa a port rise and fall time 0.8 3 0.8 3 0.8 3 ns t rb, t fb b port rise and fall time 0.7 3 0. 5 3 0.4 3 ns t sk(o) channel - to - ch annel 0.5 0.5 0.5 ns max data rate 100 100 100 mbps
________________________________________________________________________ http://www.union - ic.com rev. 0 2 jan .201 5 7 / 13 u m3301 switching characteristics over recommended operating free - air temperature range, v cca = 3.3 v0. 3 v (unless otherwise noted) parameter from (input) to (output) v ccb =3.3v 0.3v v ccb =5v 0.5v unit min max min max t pd a b 0.9 7 0.8 7 ns b a 1 7 0.9 7 t en oe a 1 1 s dis oe a 150 120 ns b 150 200 t ra, t fa a port rise and fall time 0.7 3.5 0.7 3.5 ns t rb, t fb b port rise and fall time 0.5 3.0 0. 4 3.0 ns t sk(o) channel - to - channel 0. 5 0. 5 ns max data rate 100 100 mbps
________________________________________________________________________ http://www.union - ic.com rev. 0 2 jan .201 5 8 / 13 u m3301 applications information the UM3301B/um 3301da esd protected level translator provide s level shifting necessary to allow data transfer in a multi - v oltage system. externally applied voltages, v cca and v ccb set the logic levels on either side of device. a low voltage signal present on v cca side of the device appears as a high voltage logic signal on the v ccb side of the device, and vice - versa. block diagram the UM3301B/ um3301da ( block diagram se e figure 1) does not require a direction - control signal to control the direction of data flow from a to b or from b to a. in a dc state, the output drivers of the UM3301B/ um3301da can maintain a high or low, but are designed to be weak, so that they can be overdri ven by an external driver when data on the bus starts flowing towards the opposite direction. the output one shot detect s rising or falling edges on the a or b ports. during a rising edge, the one shot turns on the pmos transistors (t1, t3) for a short dur ation, which speeds up the low - to - high transition. similarly, during a falling edge, the one shot turns on the nmos transistors (t2, t4) for a short duration, which speeds up the high - to - low transition. figure 1 block diagr am of UM3301B/ um3301da i/o cell p o n e s h o t n o n e s h o t 4 k i / o a i / o b v c c a v c c b p o n e s h o t n o n e s h o t 4 k t 3 t 4 t 2 t 1
________________________________________________________________________ http://www.union - ic.com rev. 0 2 jan .201 5 9 / 13 u m3301 input driver requirements typical i in vs v in characteristics of the UM3301B/u m3301da are shown in figure 2. for proper operation, the device driving the data i/os of the UM3301B/u m3301da must have drive strength of at least 2 ma. a: v t is the input threshold voltage of the UM3301B/um 3301da (typical v cci /2) b: v d is the supply voltage of the external driver. figure 2 typical i in vs v in curve power up during operation, ensure that v cca v ccb at all times. during power - up sequencing , v cca v ccb does not damage the device, so any power supply can be ramped up first. the UM3301B/ um3301da has circuitry that disables al l output ports when either v cc is switched off (v cca/b = 0 v). enable and disable the UM3301B/u m3301da has an oe input that is used to disable the device by setting oe = low, which places all i/os in the high - impedance (hi - z) state. the disable time (tdi s) indicates the delay between when oe goes low and when the outputs ac t u al ly get disabled (hi - z). the enable time (ten) indicates the amount of time the user must allow for the one - shot circuitry to become operational after oe is taken high. pullup or pulldown resistors on i/o lines the UM3301B/u m3301da is designed to dri ve ca pacitive loads of up to 7 0 pf . the output drivers of the UM3301B/um3 301da have low dc drive strength. external pullup or pulldown resistors need to be higher than 50 k . for the same reason, the UM3301B/um3 301da should not be used in open - drain system , such as i 2 c or 1 - wire system. i i n v i n v t / 4 k - ( v d - v t ) / 4 k
________________________________________________________________________ http://www.union - ic.com rev. 0 2 jan .201 5 10 / 13 u m3301 typical operating circuit figure 3 typical operating circuit test circuits figure 4 load circuits and voltage waveforms u m 3 3 0 1 o e v c c a v c c b a b + 1 . 8 v s y s t e m c o n t r o l l e r d a t a + 3 . 3 v s y s t e m d a t a + 1 . 8 v + 3 . 3 v g n d g n d g n d 1 5 p f 1 m f r o m o u t p u t u n d e r t e s t l o a d c i r c u i t f o r m a x d a t a r a t e , p u l s e d u r a t i o n p r o p a g a t i o n d e l a y o u t p u t r i s e a n d f a l l t i m e m e a s u r e m e n t 1 5 p f 5 0 k 5 0 k s 1 2 v c c o o p e n f r o m o u t p u t u n d e r t e s t l o a d c i r c u i t f o r e n a b l e / d i s a b l e t i m e m e a s u r e m e n t t e s t s 1 t p z l / t p l z t p h z / t p z h 2 v c c o o p e n v c c i / 2 v c c i / 2 v c c i 0 v 0 . 9 v c c o 0 . 1 v c c o v c c o / 2 v c c o / 2 v o h v o l t p l h t p h l i n p u t o u t p u t t r t r v o l t a g e w a v e f o r m s p r o p a g a t i o n d e l a y t i m e s t w v c c i 0 v i n p u t v c c i / 2 v c c i / 2 v o l t a g e w a v e f o r m s p u l s e d u r a t i o n a . c l i n c l u d e s p r o b e a n d j i g c a p a c i t a n c e . b . a l l i n p u t p u l s e s a r e s u p p l i e d b y g e n e r a t o r s h a v i n g t h e f o l l o w i n g c h a r a c t e r i s t i c s : p r r 1 0 m h z , z o = 5 0 , d v / d t 1 v / n s . c . t h e o u t p u t s a r e m e a s u r e d o n e a t a t i m e , w i t h o n e t r a n s i t i o n p e r m e a s u r e m e n t . d . t p l h a n d t p h l a r e t h e s a m e a s t p d . e . v c c i i s t h e v c c a s s o c i a t e d w i t h t h e i n p u t p o r t . f . v c c o i s t h e v c c a s s o c i a t e d w i t h t h e o u t p u t p o r t . g . a l l p a r a m e t e r s a n d w a v e f o r m s a r e n o t a p p l i c a b l e t o a l l d e v i c e s .
________________________________________________________________________ http://www.union - ic.com rev. 0 2 jan .201 5 11 / 13 u m3301 package information um330 1 b sot563 outline drawing dimensions symbol millimeters inches min max min max a 0.525 0.600 0.021 0.024 a1 0.000 0.050 0.000 0.002 b 0.150 0.300 0.006 0.012 c 0.090 0.180 0.004 0.007 d 1.500 1.700 0.059 0.067 e 1.100 1.300 0.043 0.051 e1 1.500 1.700 0.059 0.067 e 0.450 0.550 0.018 0.022 l 0.100 0.300 0.004 0.012 7ref 7ref land pattern notes: 1. compound dimension: 1.60 1.20 ; 2. unit: mm; 3.general tolerance 0.05mm unless otherwise specified; 4. the layout is just for reference. tape and reel orientation
________________________________________________________________________ http://www.union - ic.com rev. 0 2 jan .201 5 12 / 13 u m3301 um3301da dfn6 1.451.0 outline drawing dimensions symbol m illimeters i nches min max min max a 0.500 0.600 0.020 0.024 a1 0.000 0.050 0.000 0.002 a3 0.120ref 0.005ref d 1. 374 1.526 0.054 0.060 e 0. 924 1.076 0.036 0.042 k 0.200 - 0.008 - b 0.150 0.250 0.006 0.010 e 0.500 typ 0.020 typ l 0.250 0.350 0.010 0.014 l1 0.300 0.400 0.012 0.016 l2 0.000 0.100 0.000 0.004 land pattern notes: 1. compound dimension: 1.45 1.0 0; 2. unit: mm; 3.general tolerance 0.05mm unless otherwise specified; 4. the layout is just for reference. tape and reel orientation d e e l k b l 1 l 2 n 6 n 4 n 3 n 1 t o p v i e w b o t t o m v i e w s i d e v i e w a a 3 a 1 0 . 6 7 5 0 . 5 0 0 0 . 5 0 0 0 . 2 7 0 0 . 3 2 5 c a m
________________________________________________________________________ http://www.union - ic.com rev. 0 2 jan .201 5 13 / 13 u m3301 important no tice the information in this document has been carefully reviewed and is believed to be accurate. nonetheless, this document is subject to change without notice. union assumes no responsibility for any inaccuracies that may be contained in this document, and ma kes no commitment to update or to keep current the contained information, or to notify a person or organization of any update. union reserves the right to make changes, at any time, in order to improve reliability, function or design and to attempt to supp ly the best product possible. union semiconductor, inc add: unit 606, no.570 shengxia road, shanghai 2012 10 tel: 021 - 5109 3966 fax: 021 - 51026018 website: www.union - ic.com

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