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| TC74VCXH162827FT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VCXH162827FT Low-Voltage 20-Bit Bus Buffer with Bushold The TC74VCXH162827FT is a high-performance CMOS 20-bit bus buffer. Designed for use in 1.8-V, 2.5-V or 3.3-V systems, it achieves high-speed operation while maintaining the CMOS low power dissipation. The TC74VCXH162827FT is composed of two 10-bit sections with separate output-enable signals. For either 10-bit buffer section, the two output-enable (1OE1 and 1OE2 or 2OE1 and 2OE2) inputs must both be low for the corresponding Y outputs to be active. When the OE input is high, the outputs are in a high impedance state. This device is designed to be used with Weight: 0.25 g (typ.) 3-state memory address drivers, etc. The 26- series resistor helps reducing output overshoot and undershoot without external resistor. The A data inputs include active bushold circuitry, eliminating the need for external pull-up resistors to hold unused or floating data inputs at a valid logic level. All inputs are equipped with protection circuits against static discharge. Features * * * * 26- series resistors on outputs Low-voltage operation: VCC = 1.8 to 3.6 V Bushold on data inputs eliminating the need for external pull-up/pull-down resistors High-speed operation: tpd = 3.4 (max) (VCC = 3.0 to 3.6 V) : tpd = 4.1 (max) (VCC = 2.3 to 2.7 V) : tpd = 8.2 (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 3.6-V tolerant function and power-down protection control inputs and outputs 1 2007-10-19 TC74VCXH162827FT Pin Assignment (top view) 1OE1 1OE2 2OE1 2OE2 IEC Logic Symbol 1 56 28 29 55 54 52 51 49 48 47 45 44 43 42 41 40 38 37 36 34 33 31 30 1 2 & & 1OE1 1Y1 1Y2 GND 1Y3 1Y4 VCC 1Y5 1Y6 1 2 3 4 5 6 7 8 9 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 1OE2 1A1 1A2 GND EN1 EN2 1 1 2 3 5 6 8 9 10 12 13 14 15 16 17 19 20 21 23 24 26 27 1Y1 1Y2 1Y3 1Y4 1Y5 1Y6 1Y7 1Y8 1Y9 1Y10 2Y1 2Y2 2Y3 2Y4 2Y5 2Y6 2Y7 2Y8 2Y9 2Y10 1A1 1A2 1A3 1A4 1A5 1A6 1A7 1A8 1A9 1A10 2A1 2A2 2A3 2A4 2A5 2A6 2A7 2A8 2A9 2A10 1A3 1A4 VCC 1A5 1A6 1A7 GND 1A8 1A9 1A10 2A1 2A2 2A3 GND 2A4 2A5 2A6 VCC 2A7 2A8 GND 2A9 2A10 2OE2 1Y7 10 GND 11 1Y8 12 1Y9 13 1Y10 14 2Y1 15 2Y2 2Y3 16 17 41 40 39 38 37 36 35 34 33 32 31 30 29 GND 18 2Y4 19 2Y5 20 2Y6 21 VCC 2Y7 2Y8 22 23 24 GND 25 2Y9 26 2Y10 27 2OE1 28 2 2007-10-19 TC74VCXH162827FT Truth Table (each 10-bit latch) Inputs OE1 L L H X OE2 L L X H A L H X X Outputs Y L H Z Z X: Don't care Z: High impedance System Diagram 1OE1 1OE2 1A1 1 56 55 2 1Y1 To nine other channels 2OE1 2OE2 2A1 28 29 42 15 2Y1 To nine other channels 3 2007-10-19 TC74VCXH162827FT Absolute Maximum Ratings (Note 1) Characteristics Power supply voltage DC input voltage ( OE ) (An) Symbol VCC VIN Rating -0.5 to 4.6 -0.5 to 4.6 -0.5 to VCC + 0.5 -0.5 to 4.6 (Note 2) Unit V V DC output voltage VOUT -0.5 to VCC + 0.5 V (Note 3) Input diode current Output diode current Output current Power dissipation DC VCC/ground current per supply pin Storage temperature IIK IOK IOUT PD ICC/IGND Tstg -50 50 50 mA (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 4 2007-10-19 TC74VCXH162827FT Operating Ranges (Note 1) (Note 2) Characteristics Power supply voltage ( OE ) (An) Symbol VCC Rating 1.8 to 3.6 1.2 to 3.6 (Note 3) -0.3 to 3.6 Unit V Input voltage VIN 0 to VCC 0 to 3.6 (Note 4) 0 to VCC (Note 5) 12 V Output voltage VOUT V (Note 6) (Note 7) (Note 8) C (Note 9) ns/V mA Output current IOH/IOL 8 4 Operating temperature Input rise and fall time Topr dt/dv -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: Floating or unused control inputs must be held high or low. Note 3: Data retention Note 4: OFF state Note 5: High or low state Note 6: VCC = 3.0 to 3.6 V Note 7: VCC = 2.3 to 2.7 V Note 8: VCC = 1.8 V Note 9: VIN = 0.8 to 2.0 V, VCC = 3.0 V 5 2007-10-19 TC74VCXH162827FT 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 ( OE ) (An) IIN VIN = 0 to 3.6 V VIN = VCC or GND VIN = 0.8 V VIN = 2.0 V (Note 1) (Note 2) VIN = VIH or VIL VOUT = 0 to 3.6 V VOUT = 0 to 3.6 V VIN = VCC or GND VCC < VOUT < 3.6 V = = VIH = VCC - 0.6 V 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 3.0 3.0 3.6 3.6 2.7 to 3.6 0 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 5.0 A Bushold input minimum drive hold current Bushold input over-drive current to change state 3-state output OFF state current Power-off leakage current Quiescent supply current Increase in ICC per input II (HOLD) 75 -75 A II (OD) 450 -450 10.0 A IOZ IOFF ICC ICC A A A A 10.0 20.0 20.0 (Note 3) 2.7 to 3.6 2.7 to 3.6 750 Note 1: An external driver must source at least the specified current to switch LOW-to-HIGH. Note 2: An external driver must sink at least the specified current to switch HIGH-to-LOW. Note 3: Outputs high impedance only. 6 2007-10-19 TC74VCXH162827FT < < 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 ( OE ) (An) IIN VIN = 0 to 3.6 V VIN = VCC or GND VIN = 0.7 V VIN = 1.6 V (Note 1) (Note 2) VIN = VIH or VIL VOUT = 0 to 3.6 V VOUT = 0 to 3.6 V VIN = VCC or GND VCC < 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 2.3 2.3 2.7 2.7 2.3 to 2.7 0 2.3 to 2.7 VCC - 0.2 2.0 1.8 1.7 V 0.2 0.4 0.6 5.0 5.0 A Bushold input minimum drive hold current Bushold input over-drive current to change state 3-state output OFF state current Power-off leakage current Quiescent supply current II (HOLD) 45 -45 A II (OD) 300 -300 10.0 A IOZ IOFF ICC A A A 10.0 20.0 20.0 (Note 3) 2.3 to 2.7 Note 1: An external driver must source at least the specified current to switch LOW-to-HIGH. Note 2: An external driver must sink at least the specified current to switch HIGH-to-LOW. Note 3: Outputs high impedance only. 7 2007-10-19 TC74VCXH162827FT < DC Characteristics (Ta = -40 to 85C, 1.8 V = VCC < 2.3 V) Characteristics Symbol Test Condition VCC (V) 1.8 to 2.3 1.8 to 2.3 Min 0.7 x VCC Max Unit H-level Input voltage L-level VIH VIL 0.2 x VCC V H-level Output voltage L-level Input leakage current ( OE ) (An) VOH VIN = VIH or VIL IOH = -100 A IOH = -4 mA 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 VCC - 0.2 1.4 V VOL VIN = VIH or VIL VIN = 0 to 3.6 V VIN = VCC or GND VIN = 0.36 V VIN = 1.26 V IOL = 100 A IOL = 4 mA 0.2 0.3 5.0 5.0 A IIN Bushold input minimum drive hold current Bushold input over-drive current to change state 3-state output OFF state current Power-off leakage current Quiescent supply current II (HOLD) 25 -25 A II (OD) VIN = VIH or VIL VOUT = 0 to 3.6 V VOUT = 0 to 3.6 V VIN = VCC or GND VCC < VOUT < 3.6 V = = (Note 1) (Note 2) 1.8 1.8 1.8 0 1.8 200 -200 10.0 A IOZ IOFF ICC A A A 10.0 20.0 20.0 (Note 3) 1.8 Note 1: An external driver must source at least the specified current to switch LOW-to-HIGH. Note 2: An external driver must sink at least the specified current to switch HIGH-to-LOW. Note 3: Outputs high impedance only. 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) tpLH tpHL 1.8 Figure 1, Figure 2 2.5 0.2 3.3 0.3 1.8 Figure 1, Figure 3 2.5 0.2 3.3 0.3 1.8 Figure 1, Figure 3 2.5 0.2 3.3 0.3 1.8 (Note 2) 2.5 0.2 3.3 0.3 1.5 1.0 0.8 1.5 1.0 0.8 1.5 1.0 0.8 Min Max 8.2 4.1 3.4 9.8 5.9 4.3 8.8 4.9 4.3 0.5 0.5 0.5 Unit Propagation delay time ns 3-state output enable time tpZL tpZH ns 3-state output disable time tpLZ tpHZ ns Output to output skew tosLH tosHL ns 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|) 8 2007-10-19 TC74VCXH162827FT 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 Output capacitance Power dissipation capacitance Symbol CIN CO CPD fIN = 10 MHz Test Condition VCC (V) Typ. 6 7 20 Unit pF pF pF 1.8, 2.5, 3.3 1.8, 2.5, 3.3 (Note) 1.8, 2.5, 3.3 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/20 (per bit) 9 2007-10-19 TC74VCXH162827FT 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 (A) tf 2.0 ns 90% VM VIH 10% GND VOH VM tpLH tpHL VOL Output (Y) Figure 2 tpLH, tpHL 10 2007-10-19 TC74VCXH162827FT tr 2.0 ns Output Enable Control ( OE ) tpLZ Output (Y) Low to Off to Low tpHZ Output (Y) High to Off to High Outputs enabled VX tpZH tf 2.0 ns 90% VM VIH 10% tpZL 3.0 V or VCC VM VOL VOH VM GND Outputs disabled Outputs enabled GND VY Figure 3 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 11 2007-10-19 TC74VCXH162827FT Package Dimensions Weight: 0.25 g (typ.) 12 2007-10-19 TC74VCXH162827FT 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. 13 2007-10-19 |
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