TC74LCXR163245FT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74LCXR163245FT 16-Bit Dual Supply Bus Transceiver with Series Resistor The TC74LCXR163245FT is a dual supply, advanced high-speed CMOS 16-bit dual supply voltage interface bus transceiver fabricated with silicon gate CMOS technology. Designed for use as an interface between a 3.3-V or a 2.5-V bus and a 5-V bus in mixed 3.3-V or 2.5-V / 5-V supply systems, it achieves high-speed operation while maintaining the CMOS low power dissipation. It is intended for two-way asynchronous communication between data busses. The direction of data transmission is determined by the level of the DIR input. The enable input ( OE ) can be used to disable Weight: 0.25 g (typ.) the device so that the buses are effectively isolated. The B-port interfaces with the 3.3 V or 2.5 V bus, the A-port with the 5 V bus. The 26- series resistor helps reducing output overshoot and undershoot without external resistor. All inputs are equipped with protection circuits against static discharge or transient excess voltage. Features (Note 1) (Note 2) * Bidirectional interface between 3.3 V or 2.5 V buses and 5 V buses * 26- series resistors on outputs * High-speed operation: tpd = 8.5 ns (max) * Low-voltage operation: ICC = 80 A (max) (Ta = -40 to 85C) * Symmetrical output impedance: IOUTB = 12 mA (min) (VCCB = 3.3 0.3 V / VCCA = 5 0.5 V, Ta = -40 to 85C) IOUTA = 12 mA (min) (VCCB = 3.0 V / VCCA = 4.5 V) * Power-down protection provided on all inputs and outputs * Allows A port and VCCA to float simultaneously in high state at OE pin * Latch-up performance: -500 mA * ESD performance: Machine model > 200 V (Note 2) * Package: TSSOP Note 1: 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 fixed by means of pull-up or pull-down resistors. Note 2: This device is electrostatic sensitivity (human body model > 1 kV). Please handle with caution. Start of commercial production 1999-03 1 2014-03-01 TC74LCXR163245FT Pin Assignment (top view) IEC Logic Symbol 1DIR 1 48 1OE 1B1 2 47 1A1 1B2 3 46 1A2 GND 4 45 GND 1B3 5 44 1A3 1B4 6 43 1A4 (3.3 V) VCCB 7 42 VCCA (5 V) 1B5 8 41 1A5 1B6 9 40 1A6 GND 10 39 GND 1B7 11 38 1A7 1B8 12 37 1A8 2B1 13 36 2A1 2B2 14 35 2A2 GND 15 34 GND 2B3 16 33 2A3 2B4 17 32 2A4 (3.3 V) VCCB 18 31 VCCA (5 V) 2B5 19 30 2A5 2B6 20 29 2A6 GND 21 28 GND 2B7 22 27 2A7 2B8 23 26 2A8 2DIR 24 25 2OE 1OE 1DIR 2OE 2DIR 1A1 1A2 1A3 1A4 1A5 1A6 1A7 1A8 2A1 2A2 2A3 2A4 2A5 2A6 2A7 2A8 2 48 1 25 24 47 46 44 43 41 40 38 37 36 35 33 32 30 29 27 26 G3 3 EN1 (BA) 3 EN2 (AB) G6 6 EN4 (BA) 6 EN5 (AB) 2 1 2 4 5 3 5 6 8 9 11 12 13 14 16 17 19 20 22 23 1B1 1B2 1B3 1B4 1B5 1B6 1B7 1B8 2B1 2B2 2B3 2B4 2B5 2B6 2B7 2B8 2014-03-01 TC74LCXR163245FT Truth Table Inputs Function 1OE 1DIR Bus 1A1-1A8 Bus 1B1-1B8 Outputs L L Output Input A=B L H Input Output B=A H X Z Inputs Z Function 2OE 2DIR Bus 2A1-2A8 Bus 2B1-2B8 Outputs L L Output Input A=B L H Input Output B=A H X Z Z X: Don't care Z: High impedance 3 2014-03-01 TC74LCXR163245FT Block Diagram VCCB 1DIR VCCA Logic level converter 1OE 1B1 1B8 1A1 Same as above block VCCB 2DIR 2OE VCCA Logic level converter 2B1 2B8 1A8 2A1 Same as above block 4 2A8 2014-03-01 TC74LCXR163245FT Absolute Maximum Ratings (Note 1) Characteristics Power supply voltage (Note 2) DC input voltage (DIR, OE ) Symbol Rating VCCB -0.5 to 7.0 VCCA -0.5 to 7.0 VIN -0.5 to 7.0 Unit V V -0.5 to 7.0 (Note 3) VI/OB -0.5 to VCCB + 0.5 (Note 4) DC bus I/O voltage V -0.5 to 7.0 (Note 3) VI/OA -0.5 to VCCA + 0.5 (Note 4) IIK -50 II/OK 50 IOUTB 50 IOUTA 50 ICCB 100 ICCA 100 Power dissipation PD 400 mW Storage temperature Tstg -65 to 150 C Input diode current Output diode current DC output current DC VCC/ground current per supply pin mA (Note 5) mA mA mA 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: Don't supply a voltage to VCCA terminal when VCCB is in the off-state. Note 3: Output in OFF state Note 4: High or low state. IOUT absolute maximum rating must be observed. Note 5: VOUT < GND, VOUT > VCC 5 2014-03-01 TC74LCXR163245FT Operating Ranges (Note 1) Characteristics Power supply voltage (Note 2) Input voltage (DIR, OE ) Symbol Rating VCCB 2.3 to 3.6 VCCA 4.5 to 5.5 VIN 0 to 5.5 VI/OB DC bus I/O voltage VI/OA Output current 0 to 5.5 Unit V V (Note 3) 0 to VCCB (Note 4) 0 to 5.5 (Note 3) V 0 to VCCA (Note 4) IOUTB IOUTA 12 (Note 5) 4 (Note 6) 12 (Note 7) Operating temperature Topr -40 to 85 Input rise and fall time dt/dv 0 to 10 mA C (Note 8) ns/V 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. Please connect both bus inputs and the bus outputs with VCC or GND when the I/O of the bus terminal changes by the function. In this case, please note that the output is not short-circuited. Note 2: Don't use in VCCB > VCCA. Note 3: Output in OFF state Note 4: High or low state Note 5: VCCB = 3.0 to 3.6 V Note 6: VCCB = 2.3 to 2.7 V Note 7: VCCA = 4.5 to 5.5 V Note 8: VINB = 0.8 to 2.0 V, VCCB = 3.0 V VINA = 0.8 to 2.0 V, VCCA = 5.0 V 6 2014-03-01 TC74LCXR163245FT Electrical Characteristics DC Characteristics Characteristics H-level input voltage L-level input voltage Symbol Test Condition VIHB DIR, OE , Bn VIHA An VILB DIR, OE , Bn VILA An IOHB = -100 A VOHB H-level output voltage VINA = VIHA or VILA VINB = VIHB or VILB VOHA VOLB L-level output voltage VOLA IOZB 3-state output OFF state current IOZA Input leakage current Power-off leakage current IIN IOFF ICCB1 ICCB2 Quiescent supply current ICCA VINA = VIHA or VILA VINB = VIHB or VILB VCCB (V) VCCA (V) Ta = -40 to 85C Min Max 2.5 0.2 5.0 0.5 1.7 3.3 0.3 5.0 0.5 2.0 2.3 to 3.6 5.0 0.5 2.0 2.5 0.2 5.0 0.5 0.7 3.3 0.3 5.0 0.5 0.8 2.3 to 3.6 5.0 0.5 0.8 2.3 to 3.6 5.0 0.5 VCCB - 0.2 IOHB = -12 mA 3.0 5.0 0.5 2.2 IOHB = - 4 mA 2.3 5.0 0.5 1.8 VCCA - 0.2 3.7 IOHA = -100 A 2.3 to 3.6 5.0 0.5 IOHA = -12 mA 2.3 to 3.6 IOLB = 100 A 2.3 to 3.6 5.0 0.5 0.2 4.5 IOLB = 12 mA 3.0 5.0 0.5 0.8 IOLB = 4 mA 2.3 5.0 0.5 0.6 IOLA = 100 A 2.3 to 3.6 5.0 0.5 0.2 IOLA = 12 mA 2.3 to 3.6 0.7 5.0 VIN = VIHB or VILB VI/OB = VCCB or GND VIN = VIHB or VILB VI/OA = VCCA or GND VIN (DIR, OE ) = VCCB or GND VINA/VINB = 0 to 5.5 V VI/OA = Open, VCCA = Open VOE = VCCB, DIR = GND VINA = VCCA or GND VINB = VCCB or GND VINA = VCCA or GND VINB = VCCB or GND ICCTB VINB = VCCB - 0.6 V per input ICCTA VINA = 3.4 V per input 7 4.5 2.3 to 3.6 5.0 0.5 Unit V V V V A 2.3 to 3.6 5.0 0.5 5.0 3.6 5.5 5.0 A 0 0 10 A 3.6 Open 50 3.6 5.5 50 3.6 5.5 80 3.6 5.0 0.5 500 2.3 to 3.6 5.5 2.0 A mA 2014-03-01 TC74LCXR163245FT AC Characteristics (input: tr = tf = 2.5 ns, RL = 500 ) VCCB = 3.3 0.3 V Characteristics Symbol Propagation delay time tpLH (Bn An) tpHL 3-state output enable time ( OE An) 3-state output disable time ( OE An) tpZL tpZH (An Bn) tpHL 3-state output disable time ( OE Bn) Output to output skew Note: tpZL tpZH VCCA (V) Ta = -40 to 85C Min Max 50 5.0 0.5 1.0 7.5 50 5.0 0.5 1.0 9.5 50 5.0 0.5 1.0 9.5 50 5.0 0.5 1.0 8.5 50 5.0 0.5 1.0 9.5 50 5.0 0.5 1.0 9.5 50 5.0 0.5 1.0 CL (pF) VCCA (V) Ta = -40 to 85C Unit Input: Bn Output: An ns (DIR = "L") tpHZ tpLH ( OE Bn) CL (pF) tpLZ Propagation delay time 3-state output enable time Test Condition Input: An Output: Bn ns (DIR = "H") tpLZ tpHZ tosLH (Note) tosHL ns Parameter guaranteed by design. (tosLH = |tpLHm - tpLHn|, tosHL = |tpHLm - tpHLn|) VCCB = 2.5 0.2 V Characteristics Symbol Propagation delay time tpLH (Bn An) tpHL 3-state output enable time ( OE An) 3-state output disable time ( OE An) tpZL tpZH (An Bn) tpHL ( OE Bn) 3-state output disable time ( OE Bn) Output to output skew Note: Output: An tpZL tpZH Max 50 5.0 0.5 1.0 9.0 50 5.0 0.5 1.0 13.0 50 5.0 0.5 1.0 14.0 30 5.0 0.5 1.0 9.5 30 5.0 0.5 1.0 12.5 30 5.0 0.5 1.0 10.0 30 or 50 5.0 0.5 1.0 ns (DIR = "L") tpHZ tpLH Min Unit Input: Bn tpLZ Propagation delay time 3-state output enable time Test Condition Input: An Output: Bn ns (DIR = "H") tpLZ tpHZ tosLH (Note) tosHL ns Parameter guaranteed by design. (tosLH = |tpLHm - tpLHn|, tosHL = |tpHLm - tpHLn|) 8 2014-03-01 TC74LCXR163245FT Capacitive Characteristics (Ta = 25C) VCCB = 2.5, 3.3 V Symbol Test Circuit Input capacitance CIN Output capacitance CI/O CPDA CPDB Characteristics Power dissipation capacitance (Note) Note: Test Condition VCCA (V) Typ. Unit DIR, OE 5.0 7 pF An, Bn 5.0 8 pF A B (DIR = "H") 5.0 20 B A (DIR = "L") 5.0 66 A B (DIR = "H") 5.0 34 B A (DIR = "L") 5.0 4 pF pF 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) 9 2014-03-01 TC74LCXR163245FT Package Dimensions Weight: 0.25 g (typ.) 10 2014-03-01 TC74LCXR163245FT RESTRICTIONS ON PRODUCT USE * Toshiba Corporation, and its subsidiaries and affiliates (collectively "TOSHIBA"), reserve the right to make changes to the information in this document, and related hardware, software and systems (collectively "Product") without notice. * This document and any information herein may not be reproduced without prior written permission from TOSHIBA. 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