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Integrated Device Technology, Inc.
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVERS
IDT54/74FCT16245T/AT/CT/ET IDT54/74FCT162245T/AT/CT/ET IDT54/74FCT166245T/AT/CT IDT54/74FCT162H245T/AT/CT/ET
FEATURES:
* Common features: - 0.5 MICRON CMOS Technology - High-speed, low-power CMOS replacement for ABT functions - Typical tSK(o) (Output Skew) < 250ps - Low input and output leakage 1A (max.) - ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) - Packages include 25 mil pitch SSOP, 19.6 mil pitch TSSOP, 15.7 mil pitch TVSOP and 25 mil pitch Cerpack - Extended commercial range of -40C to +85C * Features for FCT16245T/AT/CT/ET: - High drive outputs (-32mA IOH, 64mA IOL) - Power off disable outputs permit "live insertion" - Typical VOLP (Output Ground Bounce) < 1.0V at VCC = 5V, TA = 25C * Features for FCT162245T/AT/CT/ET: - Balanced Output Drivers: 24mA (commercial), 16mA (military) - Reduced system switching noise - Typical VOLP (Output Ground Bounce) < 0.6V at VCC = 5V,TA = 25C
DESCRIPTION:
The 16-bit transceivers are built using advanced dual metal CMOS technology. These high-speed, low-power transceivers are ideal for synchronous communication between two busses (A and B). The Direction and Output Enable controls operate these devices as either two independent 8-bit transceivers or one 16-bit transceiver. The direction control pin (xDIR) controls the direction of data flow. The output enable pin (xOE) overrides the direction control and disables both ports. All inputs are designed with hysteresis for improved noise margin. The FCT16245T are ideally suited for driving high-capacitance loads and low-impedance backplanes. The output buffers are designed with power off disable capability to allow "live insertion" of boards when used as backplane drivers. The FCT162245T have balanced output drive with current limiting resistors. This offers low ground bounce, minimal undershoot, and controlled output fall times- reducing the need for external series terminating resistors. The FCT162245T are plug-in replacements for the FCT16245T and ABT16245 for on-board interface applications. The FCT166245T are suited for very low noise, point-topoint driving where there is a single receiver, or a light lumped
FUNCTIONAL BLOCK DIAGRAM
1
DIR
1OE 1A1 1B1 1A2 1B2 1A3 1B3 1A4 1B4 1A5 1B5 1A6 1B6 1A7 1B7 1A8 1B8
2545 drw 01
2
DIR
2OE 2A1 2B1 2A2 2B2 2A3 2B3 2A4 2B4 2A5 2B5 2A6 2B6 2A7 2B7 2A8 2B8
2545 drw 02
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
(c)1996 Integrated Device Technology, Inc.
AUGUST 1996
DSC-2545/9
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IDT54/74FCT16245T/AT/CT/ET, 162245T/AT/CT/ET, IDT54/74FCT166245T/AT/CT, IDT54/74FCT162H245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
FEATURES: (Cont'd.)
* Features for FCT166245T/AT/CT: - Light Drive A Port: 8mA (commercial), 6mA (military) - High Drive B Port: +64mA, -32mA (commercial), +48mA, -24mA (military) - Minimal system switching noise - Typical VOLP (Output Ground Bounce) < 0.25V at VCC = 5V,TA = 25C (A Port Switching) * Features for FCT162H245T/AT/CT/ET: - Bus Hold retains last active bus state during 3-state - Eliminates the need for external pull up resistors
DESCRIPTION: (Cont'd.)
load (<100pF). The buffers are designed to limit the output current to levels which will avoid noise and ringing on the signal lines without using external series terminating resistors. These parts have a 8mA driver on the "A" Port and a +64/-32mA driver on the "B" Port, making them ideal for interfacing noisy system busses to noise sensitive interfaces. The FCT162H245T have "Bus Hold" which retains the input's last state whenever the input goes to high impedance. This prevents "floating" inputs and eliminates the need for pull-up/down resistors.
PIN CONFIGURATIONS
1DIR 1B1 1B2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 SO48-1 37 SO48-2 SO48-3 36 35 34 33 32 31 30 29 28 27 26 25
1OE 1A1 1A2
1DIR 1B1 1B2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 E48-1
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
2545 drw 04
1OE 1A1 1A2
GND
1B3 1B4
GND
1A3 1A4
GND
1B3 1B4
GND
1A3 1A4
VCC
1B5 1B6
VCC
1A5 1A6
VCC
1B5 1B6
VCC
1A5 1A6
GND
1B7 1B8 2B1 2B2
GND
1A7 1A8 2A1 2A2
GND
1B7 1B8 2B1 2B2
GND
1A7 1A8 2A1 2A2
GND
2B3 2B4
GND
2A3 2A4
GND
2B3 2B4
GND
2A3 2A4
VCC
2B5 2B6
VCC
2A5 2A6
VCC
2B5 2B6
VCC
2A5 2A6
GND
2B7 2B8 2DIR
GND
2A7 2A8 2OE
2545 drw 03
GND
2B7 2B8 2DIR
GND
2A7 2A8 2OE
SSOP/ TSSOP/TVSOP TOP VIEW
CERPACK TOP VIEW
5.3
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IDT54/74FCT16245T/AT/CT/ET, 162245T/AT/CT/ET, IDT54/74FCT166245T/AT/CT, IDT54/74FCT162H245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN DESCRIPTION
Pin Names xOE xDIR xAx xBx Description Output Enable Input (Active LOW) Direction Control Input Side A Inputs or 3-State Outputs(1,2) Side B Inputs or 3-State Outputs(1,3)
2545 tbl 01
FUNCTION TABLE(1)
Inputs xOE OE L L H xDIR L H X Outputs Bus B Data to Bus A Bus A Data to Bus B High Z State
2545 tbl 02
NOTES: 1. On FCT162H245T these pins have "Bus Hold". All other pins are standard inputs, outputs or I/Os. 2. On FCT166245T this is the 8mA Port. 3. On FCT166245T this is the +64/-32mA Port.
NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High Impedance
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Description Max. VTERM(2) Terminal Voltage with Respect to -0.5 to +7.0 GND VTERM(3) Terminal Voltage with Respect to -0.5 to GND VCC +0.5 TSTG Storage Temperature -65 to +150 IOUT DC Output Current -60 to +120 Unit V V C mA
CAPACITANCE (TA = +25C, f = 1.0MHz)
Symbol Parameter(1) CIN Input Capacitance CI/O I/O Capacitance Conditions VIN = 0V VOUT = 0V Typ. 3.5 3.5 Max. Unit 6.0 pF 8.0 pF
2545 lnk 04
NOTE: 1. This parameter is measured at characterization but not tested.
2545 lnk 03 NOTES: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. All device terminals except FCT162XXXT and FCT166XXXT (A-Port) Output and I/O terminals. 3. Output and I/O terminals for FCT162XXXT and FCT166XXXT (A-Port).
5.3
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IDT54/74FCT16245T/AT/CT/ET, 162245T/AT/CT/ET, IDT54/74FCT166245T/AT/CT, IDT54/74FCT162H245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (STANDARD PARTS)
Following Conditions Apply Unless Otherwise Specified: Commercial: TA =-40C to +85C, VCC = 5.0V 10%; Military: TA = -55C to +125C, VCC = 5.0V 10%
Symbol VIH VIL II H II L IOZH IOZL VIK IOS VH ICCL ICCH ICCZ Parameter Input HIGH Level Input LOW Level Input HIGH Current (Input pins)(5) Input HIGH Current (I/O pins)(5) Input LOW Current (Input pins)(5) VCC = Max. VCC = Min., IIN = -18mA VCC = Max., VO = GND (3)
--
Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max. VI = VCC VI = GND VO = 2.7V VO = 0.5V
Min. 2.0 -- -- -- -- -- -- -- -- -80 -- --
Typ.(2) --
-- -- -- -- -- -- -- -0.7 -140
Max.
--
Unit V V A
0.8 1 1 1 1 1 1
-1.2 -225 --
Input LOW Current (I/O pins)(5) High Impedance Output Current (3-State Output pins) (5) Clamp Diode Voltage Short Circuit Current Input Hysteresis Quiescent Power Supply Current
A V mA mV A
100 5
VCC = Max., VIN = GND or VCC
500
2545 lnk 05
OUTPUT DRIVE CHARACTERISTICS FOR FCT16245T AND FCT166245T (B-PORT)
Symbol IO VOH Parameter Output Drive Current Output HIGH Voltage Test Conditions(1) VCC = Max., VO = 2.5V(3) VCC = Min. VIN = VIH or VIL IOH = -3mA IOH = -12mA MIL. IOH = -15mA COM'L. IOH = -24mA MIL. IOH = -32mA COM'L.(4) VCC = Min. IOL = 48mA MIL. VIN = VIH or VIL IOL = 64mA COM'L. VCC = 0V, VIN or VO 4.5V Min. -50 2.5 2.4 2.0 -- -- Typ.(2)
--
Max.
-180
Unit mA V V V V A
2545 lnk 06
3.5 3.5 3.0 0.2 --
-- -- -- 0.55 1
VOL IOFF
Output LOW Voltage Input/Output Power Off Leakage(5)
OUTPUT DRIVE CHARACTERISTICS FOR FCT162245T
Symbol IODL IODH VOH VOL Parameter Output LOW Current Output HIGH Current Output HIGH Voltage Output LOW Voltage Test Conditions(1) VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V (3) VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V(3) VCC = Min. VIN = VIH or VIL VCC = Min. VIN = VIH or VIL IOH = -16mA MIL. IOH = -24mA COM'L. IOL = 16mA MIL. IOL = 24mA COM'L. Min. 60 -60 2.4 -- Typ.(2) 115 -115 3.3 0.3 Max. 200 -200 -- 0.55
Unit mA mA V V
2545 lnk 07
OUTPUT DRIVE CHARACTERISTICS FOR FCT166245T (A-PORT ONLY)
Symbol IODL IODH VOH VOL Parameter Output LOW Current Output HIGH Current Output HIGH Voltage Output LOW Voltage Test Conditions(1) VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V (3) VCC = 5V, VIN = VIH or V IL, VOUT = 1.5V (3) VCC = Min. VIN = VIH or VIL VCC = Min. VIN = VIH or VIL
NOTES: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at Vcc = 5.0V, +25C ambient. 3. Not more than one output should be tested at one time. Duration of the test should not exceed one second. 4. Duration of the condition can not exceed one second. 5. The test limit for this parameter is 5A at TA = -55C.
A
VA D
CE N
O NF I
R
MA
ION T
Min. 16 -16 2.4 --
Typ.(2) 48 -48 3.3 0.3
Max. 96 -96 -- 0.55
Unit mA mA V V
2545 lnk 08
IOH = -6mA MIL. IOH = -8mA COM'L. IOL = 6mA MIL. IOL = 8mA COM'L.
5.3
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IDT54/74FCT16245T/AT/CT/ET, 162245T/AT/CT/ET, IDT54/74FCT166245T/AT/CT, IDT54/74FCT162H245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (BUS HOLD)
Following Conditions Apply Unless Otherwise Specified: Commercial: TA =-40C to +85C, VCC = 5.0V 10%; Military: TA = -55C to +125C, VCC = 5.0V 10%
Symbol VIH VIL II H Parameter Input HIGH Level Input LOW Level Input HIGH Current(4) II L Input LOW Current(4) IBHH IBHL IOZH IOZL VIK IOS VH ICCL ICCH ICCZ Bus Hold Standard Input(5) Standard I/O(5) Bus Hold Input Bus Hold I/O Standard Input(5) Standard I/O(5) Bus Hold Input Bus Hold I/O Bus Hold Input VCC = Min. VI = 2.0V VI = 0.8V VCC = Max. VCC = Min., IIN = -18mA VCC = Max., VO = GND(3)
--
Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max. VI = VCC
Min. 2.0 -- -- -- -- --
Typ.(2) -- -- -- -- -- -- -- -- -- -- -- --
-- -- -0.7 -140
Max.
--
Unit V V
0.8
1 1 100 100 1 1 100 100
-- --
A
VI = GND
-- -- -- -- -50 +50 -- -- -- -80 -- --
A
Sustain Current(4) High Impedance Output Current (3-State Output pins) (5,6) Clamp Diode Voltage Short Circuit Current Input Hysteresis Quiescent Power Supply Current
VO = 2.7V VO = 0.5V
1 1
-1.2 -225 --
A
V mA mV
100 5
VCC = Max., VIN = GND or VCC
500
A
NOTES: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at Vcc = 5.0V, +25C ambient. 3. Not more than one output should be tested at one time. Duration of the test should not exceed one second. 4. Pins with Bus Hold are identified in the pin description. 5. The test limit for this parameter is 5A at TA = -55C. 6. Does not include Bus Hold I/O pins.
2545 lnk 09
5.3
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IDT54/74FCT16245T/AT/CT/ET, 162245T/AT/CT/ET, IDT54/74FCT166245T/AT/CT, IDT54/74FCT162H245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol ICC ICCD Parameter Quiescent Power Supply Current TTL Inputs HIGH Dynamic Power Supply Current(4) Test Conditions(1) Vcc = Max. VIN = 3.4V(3) Vcc = Max. Outputs Open xOE = xDIR = GND One Input Toggling 50% Duty Cycle Vcc = Max. Outputs Open fi = 10MHz 50% Duty Cycle xOE = xDIR = GND One Bit Toggling Vcc = Max. Outputs Open fi = 2.5MHz 50% Duty Cycle xOE = xDIR = GND Sixteen Bits Toggling VIN = VCC VIN = GND Min. -- -- Typ.(2) 0.5 60 Max. 1.5 100 Unit mA A/ MHz
IC
Total Power Supply Current(6)
VIN = VCC VIN = GND VIN = 3.4V VIN = GND VIN = VCC VIN = GND VIN = 3.4V VIN = GND
--
0.6
1.5
mA
--
0.9
2.3
--
2.4
4.5(5) 16.5(5)
--
6.4
NOTES: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, +25C ambient. 3. Per TTL driven input (VIN = 3.4V). All other inputs at VCC or GND. 4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations. 5. Values for these conditions are examples of the ICC formula. These limits are guaranteed but not tested. 6. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ICC DHNT + ICCD (fCPNCP/2 + fiNi) ICC = Quiescent Current (ICCL, ICCH and ICCZ) ICC = Power Supply Current for a TTL High Input (VIN = 3.4V) DH = Duty Cycle for TTL Inputs High NT = Number of TTL Inputs at DH ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL) fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices) NCP = Number of Clock Inputs at fCP fi = Input Frequency Ni = Number of Inputs at fi
2545 tbl 10
5.3
6
IDT54/74FCT16245T/AT/CT/ET, 162245T/AT/CT/ET, IDT54/74FCT166245T/AT/CT, IDT54/74FCT162H245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
FCT16245T/162245T(5) Com'l. Symbol Parameter Condition(1) Min.(2) Max. Mil. Min.(2) Max. FCT16245AT/162245AT(5) Com'l. Min.(2) Max. Mil. Min.(2) Max. Unit
tPLH tPHL tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ tSK(o)
Propagation Delay A to B, B to A Output Enable Time xOE to A or B Output Disable Time xOE to A or B Output Enable Time xDIR to A or B (4) Output Disable Time xDIR to A or B (4) Output Skew (3)
CL = 50pF RL = 500
1.5 1.5 1.5 1.5 1.5 --
7.0 9.5 7.5 9.5 7.5 0.5
1.5 1.5 1.5 1.5 1.5 --
7.5 10.0 10.0 10.0 10.0 0.5
1.5 1.5 1.5 1.5 1.5 --
4.6 6.2 5.0 6.2 5.0 0.5
1.5 1.5 1.5 1.5 1.5 --
4.9 6.5 6.0 6.5 6.0 0.5
ns ns ns ns ns ns
2545 tbl 11
FCT16245CT/162245CT(5) Com'l. Symbol Parameter Condition(1) Min.(2) Max. Mil. Min.(2) Max.
FCT16245ET/162245ET(5) Com'l. Min.(2) Max. Mil. Min.(2) Max. Unit
tPLH tPHL tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ tSK(o)
Propagation Delay A to B, B to A Output Enable Time xOE to A or B Output Disable Time xOE to A or B Output Enable Time xDIR to A or B (4) Output Disable Time xDIR to A or B (4) Output Skew (3)
CL = 50pF RL = 500
1.5 1.5 1.5 1.5 1.5 --
4.1 5.8 4.8 5.8 4.8 0.5
1.5 1.5 1.5 1.5 1.5 --
4.5 6.2 5.2 6.2 5.2 0.5
1.5 1.5 1.5 1.5 1.5 --
3.2 4.4 4.0 4.8 4.0 0.5
-- -- -- -- -- --
-- -- -- -- -- --
ns ns ns ns ns ns
2545 tbl 12
NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design. 4. This parameter is guaranteed but not tested. 5. Including parts with Bus Hold.
5.3
7
IDT54/74FCT16245T/AT/CT/ET, 162245T/AT/CT/ET, IDT54/74FCT166245T/AT/CT, IDT54/74FCT162H245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
FCT166245T Com'l. Symbol Parameter Condition(1) Min.(2) Mil. FCT166245AT Com'l. Mil. FCT166245CT Com'l. Max. Mil. Min.(2) Max. Unit
AD VA NC E
tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ tSK(o)
Propagation Delay A to B Propagation Delay B to A Output Enable Time xOE to B Output Enable Time xOE to A Output Disable Time xOE to B Output Disable Time xOE to A Output Enable Time xDIR to B (4) Output Enable Time xDIR to A (4) Output Disable Time xDIR to B (4) Output Disable Time xDIR to A (4) Output Skew (3)
CL = 50pF RL = 500
1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 --
IN FO RM AT IO N
Max. Min.(2) Max. Min.(2) Max. Min.(2) Max.
Min.(2)
4.6
1.5
4.9
1.5
4.1
1.5
4.5
ns ns ns ns ns ns ns ns ns ns ns
2545 tbl 13
7.0 6.2 9.5 5.0 7.5
1.5 1.5 1.5 1.5 1.5
7.5 6.5
1.5 1.5
4.6 5.8
1.5 1.5
4.9 6.2
10.0 6.0
1.5
6.2
1.5
6.5
1.5
4.8
1.5
5.2
10.0 6.5
1.5
5.0
1.5
6.0
6.2 9.5 5.0 7.5
1.5 1.5 1.5 1.5 --
1.5
5.8
1.5
6.2
10.0 6.0 10.0 0.5
1.5 1.5 1.5 --
6.2 4.8 5.0 0.5
1.5 1.5 1.5 --
6.5 5.2 6.0 0.5
0.5
NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design. 4. This parameter is guaranteed but not tested.
5.3
8
IDT54/74FCT16245T/AT/CT/ET, 162245T/AT/CT/ET, IDT54/74FCT166245T/AT/CT, IDT54/74FCT162H245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS TEST CIRCUITS FOR ALL OUTPUTS
V CC 500 VIN Pulse Generator RT D.U.T. 50pF CL 500 VOUT 7.0V
SWITCH POSITION
Test Open Drain Disable Low Enable Low All Other Tests Open
2545 lnk 14 DEFINITIONS: CL= Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
Switch
Closed
2545 drw 05
SET-UP, HOLD AND RELEASE TIMES
PULSE WIDTH
DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL PRESET CLEAR CLOCK ENABLE ETC. tSU
tH
3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V
2545 drw 06
LOW-HIGH-LOW PULSE tW HIGH-LOW-HIGH PULSE
1.5V
tREM
1.5V
2545 drw 07
tSU
tH
PROPAGATION DELAY
3V 1.5V 0V VOH 1.5V VOL 3V 1.5V 0V
2545 drw 08
ENABLE AND DISABLE TIMES
ENABLE DISABLE 3V 1.5V tPZL OUTPUT NORMALLY LOW OUTPUT NORMALLY HIGH SWITCH CLOSED tPZH SWITCH OPEN 1.5V 0V 0V 3.5V 1.5V tPHZ 0.3V VOH tPLZ 0V 3.5V 0.3V VOL
SAME PHASE INPUT TRANSITION tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL tPHL
CONTROL INPUT
2545 drw 09 NOTES: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH 2. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2.5ns; tR 2.5ns
5.3
9
IDT54/74FCT16245T/AT/CT/ET, 162245T/AT/CT/ET, IDT54/74FCT166245T/AT/CT, IDT54/74FCT162H245T/AT/CT/ET FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
IDT XX FCT X Drive X Bus Hold XXXX Device Type X Package X Process Blank B PV PA PF E 245T 245AT 245CT 245ET Blank H 16 162 166 54 74 Commercial MIL-STD-883, Class B Shrink Small Outline Package (SO48-1) Thin Shrink Small Outline Package (SO48-2) Thin Very Small Outline Package (SO48-3) CERPACK (E48-1) Non-Inverting 16-Bit Bidirectional Transceiver Temp. Range
Standard Bus Hold 16-Bit High Drive 16-Bit Balanced Drive 16-Bit Light Drive -55C to +125C -40C to +85C
2545 drw 10
5.3
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