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TC74VCXR162543FT
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74VCXR162543FT
Low-Voltage 16-Bit Registered Transceiver with 3.6-V Tolerant Inputs and Outputs
The TC74VCXR162543FT is a high-performance CMOS 16-bit registered transceiver. Designed for use in 1.8-V, 2.5-Vor 3.3-V systems, it achieves high-speed operation while maintaining the CMOS low power dissipation. It is also designed with overvoltage tolerant inputs and outputs up to 3.6 V. The TC74VCXR162543FT can be used as two 8-bit transceivers or one 16-bit transceiver. Separate latch-enable (LEAB or (LEBA) and output-enable (OEAB or OEBA) inputs are provided for each register to permit independent control in either direction of data Weight: 0.25 g (typ.) flow. The A-to-B enable (CEAB) input must be low in order to enter data from A or to output data from B. If CEAB is low and LEAB is low, the A-to-B latches are transparent; a subsequent low-to-high transition of LEAB puts the Alatches in the storage mode. With CEAB and OEAB both low, the 3-state B outputs are active and reflect the data present at the output of the A latches. Data flow from B to A is similar but requires using the CEBA, LEBA, and OEBA inputs. When the OE input is high, the outputs are in a high-impedance state. This device is designed to be used with 3-state memory address drivers, etc. The 26- series resistor helps reducing output overshoot and undershoot without external resistor. All inputs are equipped with protection circuits against static discharge.
Features (Note)
* * * 26- series resistors on outputs Low-voltage operation: VCC = 1.8 to 3.6 V High-speed operation: tpd = 4.4 ns (max) (VCC = 3.0 to 3.6 V) : tpd = 5.4 ns (max) (VCC = 2.3 to 2.7 V) : tpd = 9.8 ns (max) (VCC = 1.8 V) * Output current: IOH/IOL = 12 mA (min) (VCC = 3.0 V) : IOH/IOL = 8 mA (min) (VCC = 2.3 V) : IOH/IOL = 4 mA (min) (VCC = 1.8 V) * * * * * Latch-up performance: -300 mA ESD performance: Machine model 200 V Human body model 2000 V Package: TSSOP Bidirectional interface between 2.5 V and 3.3 V signals. 3.6-V tolerant function and power-down protection provided on all inputs and outputs Note: Do not apply a signal to any bus pins when it is in the output mode. Damage may result. All floating (high impedance) bus pins must have their input level fixed by means of pull-up or pull-down resistors.
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Pin Assignment (top view) IEC Logic Symbol
1OEBA 1CEBA
1OEAB
1 2 3 4 5 6 7 8 9
56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38
56 54 55 1 3 2 29 31 30 28 26 27 5
1OEBA
1EN3 G1 IC5 2EN4 G2 2C6 7EN9 G7 7C11 8EN10 G8 8C12 3 6D 4 51 49 48 47 45 44 43 9 12D 11D 10 41 40 38 37 36 34 33 2B2 2B3 2B4 2B5 2B6 2B7 2B8 42 1B2 1B3 1B4 1B5 1B6 1B7 1B8 2B1 5D 52 1B1
1LEAB
1CEAB
1LEBA
1CEBA
1LEBA
1OEAB 1CEAB
GND 1A1 1A2 VCC 1A3 1A4
GND 1B1 1B2 VCC 1B3 1B4 1B5 GND 1B6 1B7 1B8 2B1 2B2 2B3 GND 2B4
1LEAB
2OEBA 2CEBA
2LEBA
2OEAB 2CEAB
2LEAB
1A1
1A5 10 GND 11 1A6 12 1A7 13 1A8 14 2A1 15 2A2 16 2A3 17 GND 18 2A4 19 2A5 20 2A6 21 VCC 22 2A7 23 2A8 24 GND 25
2CEAB
1A2 1A3 1A4 1A5 1A6 1A7 1A8 2A1
6 8 9 10 12 13 14 15
371 2B5 36 35 34 33 32 31 30 29 2B6 VCC 2B7 2B8 GND
2CEBA
2A2 2A3 2A4 2A5 2A6 2A7 2A8
16 17 19 20 21 23 24
26 27 28
2LEAB
2OEAB
2LEBA
2OEBA
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Truth Table (A bus B bus each 8-bit latch)
Inputs
CEAB H X L L L
LEAB X X H L L
OEAB X H L L L
A X X X L H
Outputs B Z Z B0 (Note) L H
Note:
Output level before the indicated steady-state input conditions were established.
Truth Table (B bus A bus each 8-bit latch)
Inputs CEBA H X L L L LEBA X X H L L OEBA X H L L L B X X X L H Outputs A Z Z A0 (Note) L H
Note:
Output level before the indicated steady-state input conditions were established.
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System Diagram
56 54 55 1 3 2 5 LE D LE D 52 1B1
1OEBA
1CEBA 1LEBA 1OEAB 1CEAB 1LEAB 1A1
To seven other channels 2OEBA 2CEBA 2LEBA 2OEAB 2CEAB 2LEAB 2A1 29 31 30 28 26 27 15 LE D LE D 42 2B1
To seven other channels
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Absolute Maximum Ratings (Note 1)
Characteristics Power supply voltage DC input voltage ( OEAB , OEBA , LEAB , LEBA , CEAB , CEBA ) DC bus I/O voltage Input diode current Output diode current DC output current Power dissipation DC VCC/ground current per supply pin Storage temperature VIN
-0.5 to 4.6 -0.5 to 4.6 (Note 2)
Symbol VCC
Rating
-0.5 to 4.6
Unit V V
VI/O IIK IOK IOUT PD ICC/IGND Tstg
-0.5 to VCC + 0.5
V mA
(Note 3)
-50 50 50
(Note 4)
mA mA mW mA C
400
100 -65 to 150
Note 1: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even destruction. Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum ratings and the operating ranges. Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook ("Handling Precautions"/"Derating Concept and Methods") and individual reliability data (i.e. reliability test report and estimated failure rate, etc). Note 2: OFF state Note 3: High or low state. IOUT absolute maximum rating must be observed. Note 4: VOUT < GND, VOUT > VCC
Operating Ranges (Note 1)
Characteristics Power supply voltage Input voltage ( OEAB , OEBA , LEAB , LEBA , CEAB , CEBA ) Bus I/O voltage VIN
-0.3 to 3.6
Symbol VCC
Rating 1.8 to 3.6 1.2 to 3.6 (Note 2)
Unit V
V
VI/O
0 to 3.6 (Note 3) 0 to VCC (Note 4)
12
V
(Note 5) (Note 6) (Note 7) C (Note 8) ns/V mA
Output current
IOH/IOL Topr dt/dv
8 4
Operating temperature Input rise and fall time
-40 to 85
0 to 10
Note 1: The operating ranges must be maintained to ensure the normal operation of the device. Unused inputs must be tied to either VCC or GND. Note 2: Data retention only Note 3: OFF state Note 4: High or low state Note 5: VCC = 3.0 to 3.6 V Note 6: VCC = 2.3 to 2.7 V Note 7: VCC = 1.8 V Note 8: VIN = 0.8 to 2.0 V, VCC = 3.0 V
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Electrical Characteristics
< DC Characteristics (Ta = -40 to 85C, 2.7 V < VCC = 3.6 V)
Characteristics H-level L-level Symbol VIH VIL Test Condition

VCC (V) 2.7 to 3.6 2.7 to 3.6
Min 2.0
Max
Unit
Input voltage
0.8

V
IOH = -100 A H-level VOH VIN = VIH or VIL IOH = -6 mA IOH = -8 mA Output voltage IOH = -12 mA IOL = 100 A L-level VOL VIN = VIH or VIL IOL = 6 mA IOL = 8 mA IOL = 12 mA Input leakage current 3-state output OFF state current Power-off leakage current Quiescent supply current Increase in ICC per input IIN IOZ IOFF ICC
ICC
2.7 to 3.6 2.7 3.0 3.0 2.7 to 3.6 2.7 3.0 3.0 2.7 to 3.6 2.7 to 3.6 0 2.7 to 3.6 2.7 to 3.6 2.7 to 3.6
VCC - 0.2 2.2 2.4 2.2

V
0.2 0.4 0.5 0.8
5.0 10.0 A A A
VIN = 0 to 3.6 V VIN = VIH or VIL VOUT = 0 to 3.6 V VIN, VOUT = 0 to 3.6 V VIN = VCC or GND VCC < (VIN, VOUT) < 3.6 V = = VIH = VCC - 0.6 V
10.0 20.0
20.0
A
750
< < DC Characteristics (Ta = -40 to 85C, 2.3 V = VCC = 2.7 V)
Characteristics H-level L-level Symbol VIH VIL Test Condition

VCC (V) 2.3 to 2.7 2.3 to 2.7
Min 1.6
Max
Unit
Input voltage
0.7

V
IOH = -100 A H-level Output voltage VOH VIN = VIH or VIL IOH = -4 mA IOH = -6 mA IOH = -8 mA IOL = 100 A L-level VOL VIN = VIH or VIL IOL = 6 mA IOL = 8 mA Input leakage current 3-state output OFF state current Power-off leakage current Quiescent supply current IIN IOZ IOFF ICC VIN = 0 to 3.6 V VIN = VIH or VIL VOUT = 0 to 3.6 V VIN, VOUT = 0 to 3.6 V VIN = VCC or GND VCC < (VIN, VOUT) < 3.6 V = =
2.3 to 2.7 2.3 2.3 2.3 2.3 to 2.7 2.3 2.3 2.3 to 2.7 2.3 to 2.7 0 2.3 to 2.7 2.3 to 2.7
VCC - 0.2 2.0 1.8 1.7

V
0.2 0.4 0.6
5.0 10.0 A A A A
10.0 20.0
20.0
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< DC Characteristics (Ta = -40 to 85C, 1.8 V = VCC < 2.3 V)
Characteristics H-level Input voltage L-level VIL
Symbol VIH
Test Condition
VCC (V) 1.8 to 2.3 1.8 to 2.3
Min 0.7 x VCC
Max
Unit
0.2 x VCC

V
H-level Output voltage L-level Input leakage current 3-state output OFF state current Power-off leakage current Quiescent supply current
VOH
VIN = VIH or VIL
IOH = -100 A IOH = -4 mA
1.8 1.8 1.8 1.8 1.8 1.8 0 1.8 1.8
VCC - 0.2 1.4

V
VOL IIN IOZ IOFF ICC
VIN = VIH or VIL VIN = 0 to 3.6 V VIN = VIH or VIL VOUT = 0 to 3.6 V VIN, VOUT = 0 to 3.6 V VIN = VCC or GND
IOL = 100 A IOL = 4 mA
0.2 0.3
5.0 10.0 A A A A
10.0 20.0
20.0
VCC < (VIN, VOUT) < 3.6 V = =
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AC Characteristics (Ta = -40 to 85C, input: tr = tf = 2.0 ns, CL = 30 pF, RL = 500 ) (Note 1)
Characteristics Symbol Test Condition VCC (V) 1.8 Figure 1, Figure 2 2.5 0.2 3.3 0.3 1.8 Figure 1, Figure 2 2.5 0.2 3.3 0.3 1.8 Figure 1, Figure 4 2.5 0.2 3.3 0.3 1.8 Figure 1, Figure 4 2.5 0.2 3.3 0.3 1.8 tW (L) Figure 1, Figure 2, Figure 3 2.5 0.2 3.3 0.3 1.8 ts Figure 1, Figure 2, Figure 3 2.5 0.2 3.3 0.3 1.8 th Figure 1, Figure 2, Figure 3 2.5 0.2 3.3 0.3 tosLH tosHL 1.8 (Note 2) 2.5 0.2 3.3 0.3 Min 1.5 0.8 0.6 1.5 0.8 0.6 1.5 0.8 0.6 1.5 0.8 0.6 4.0 1.5 1.5 2.5 1.5 1.5 1.0 1.0 1.0

Max 9.8 5.4 4.4 9.8 6.4 4.8 9.8 5.9 4.3 8.8 4.9 4.3

Unit
Propagation delay time (An, Bn-Bn, An)
tpLH tpHL
ns
Propagation delay time ( LEAB , LEBA -Bn, An)
tpLH tpHL
ns
3-state output enable time ( OEAB , OEBA , CEAB , CEBA )
tpZL tpZH
ns
3-state output disable time ( OEAB , OEBA , CEAB , CEBA )
tpLZ tpHZ
ns
Minimum pulse width ( LEAB , LEBA , CEAB , CEBA )
ns
Minimum setup time (An, Bn- LE , CE )
ns
Minimum hold time (An, Bn- LE , CE )
ns
0.5 0.5 0.5 ns
Output to output skew
Note 1: For CL = 50 pF, add approximately 300 ps to the AC maximum specification. Note 2: Parameter guaranteed by design. (tosLH = |tpLHm - tpLHn|, tosHL = |tpHLm - tpHLn|)
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Dynamic Switching Characteristics
(Ta = 25C, input: tr = tf = 2.0 ns, CL = 30 pF, RL = 500 )
Characteristics Symbol Test Condition VCC (V) VIH = 1.8 V, VIL = 0 V Quiet output maximum dynamic VOL VOLP VIH = 2.5 V, VIL = 0 V VIH = 3.3 V, VIL = 0 V VIH = 1.8 V, VIL = 0 V Quiet output minimum dynamic VOL VOLV VIH = 2.5 V, VIL = 0 V VIH = 3.3 V, VIL = 0 V VIH = 1.8 V, VIL = 0 V Quiet output minimum dynamic VOH VOHV VIH = 2.5 V, VIL = 0 V VIH = 3.3 V, VIL = 0 V (Note) (Note) (Note) (Note) (Note) (Note) (Note) (Note) (Note) 1.8 2.5 3.3 1.8 2.5 3.3 1.8 2.5 3.3 0.15 0.25 0.35
-0.15 -0.25 -0.35
Typ.
Unit
V
V
1.55 2.05 2.65 V
Note:
Parameter guaranteed by design.
Capacitive Characteristics (Ta = 25C)
Characteristics Input capacitance Bus I/O capacitance Power dissipation capacitance Symbol CIN CI/O CPD fIN = 10 MHz Test Condition ( OEAB , OEBA , LEAB , LEBA , CEAB , CEBA )
VCC (V) 1.8, 2.5, 3.3 1.8, 2.5, 3.3 (Note) 1.8, 2.5, 3.3
Typ. 6 7 20
Unit pF pF pF
Note:
CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: ICC (opr) = CPDVCCfIN + ICC/16 (per bit)
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AC Test Circuit
6.0 V or VCC x 2 Open GND Measure
CL RL
Switch
RL
Parameter tpLH, tpHL tpLZ, tpZL tpHZ, tpZH 6.0 V VCC x 2
Switch Open @VCC = 3.3 0.3 V @VCC = 2.5 0.2 V @VCC = 1.8 V GND
Output
CL = 30 pF RL = 500
Figure 1 AC Waveform
tr 2.0 ns Input ( LEAB , LEBA ) 90% VM tf 2.0 ns VIH VM VM GND tw (L) VIH VM GND ts (H) Output (Bn, An) VM tpLH tpHL th (H) ts (L) th (L) VOH VM tpHL tpLH VOL
10% tr 2.0 ns 90% VM
tf 2.0 ns
Input (An, Bn)
10%
Figure 2 tpLH, tpHL, tw, ts, th
tr 2.0 ns Input ( CEAB , CEBA ) 90% VM
tf 2.0 ns VIH VM VM GND tw (L) VIH VM GND
10% tr 2.0 ns 90% VM ts (H)
tf 2.0 ns
Input (An, Bn)
10%
th (H)
ts (L)
th (L)
Figure 3 tw, ts, th
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tr 2.0 ns Output Enable Control ( OEAB , OEBA , CEAB , CEBA ) tpLZ Output (An, Bn) Low to Off to Low tpHZ Output (An, Bn) High to Off to High Outputs enabled tf 2.0 ns 90% VM VIH 10% tpZL 3.0 V or VCC VM VX tpZH VOL VOH VM GND Outputs disabled Outputs enabled GND
VY
Figure 4 tpLZ, tpHZ, tpZL, tpZH
Symbol VIH VM VX VY VCC 3.3 0.3 V 2.7 V 1.5 V VOL + 0.3 V VOH - 0.3 V 2.5 0.2 V VCC VCC/2 VOL + 0.15 V VOH - 0.15 V 1.8 V VCC VCC/2 VOL + 0.15 V VOH - 0.15 V
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Package Dimensions
Weight: 0.25 g (typ.)
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RESTRICTIONS ON PRODUCT USE
* The information contained herein is subject to change without notice.
20070701-EN GENERAL
* TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc. * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.).These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in his document shall be made at the customer's own risk. * The products described in this document shall not be used or embedded to any downstream products of which manufacture, use and/or sale are prohibited under any applicable laws and regulations. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patents or other rights of TOSHIBA or the third parties. * Please contact your sales representative for product-by-product details in this document regarding RoHS compatibility. Please use these products in this document in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances. Toshiba assumes no liability for damage or losses occurring as a result of noncompliance with applicable laws and regulations.
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