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-Ω 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-Ω 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 1Y1 1 2 IEC Logic Symbol 56 55 1OE1 1OE2 1OE2 2OE1 1A1 2OE2 1Y2 3 54 1A2 GND 4 53 GND 1Y3 5 52 1A3 1Y4 6 51 1A4 VCC 1Y5 1Y6 7 8 50 49 1A1 1A2 1A3 1A4 1A5 1A6 VCC 1A7 1A8 1A5 1A9 9 48 1A6 1Y7 10 47 1A7 GND 11 46 GND 1Y8 12 45 1A8 2A5 1A9 2A6 2A7 1Y9 13 1Y10 14 2Y1 15 44 43 42 2A1 16 41 2A2 2Y3 17 40 2A3 GND 18 39 GND 2Y4 19 38 2A4 20 37 2A5 2Y6 21 36 2A6 VCC 22 35 VCC 2Y7 23 34 2A7 2Y8 24 33 2A8 GND 25 32 GND 2Y9 26 31 2A9 2Y10 27 30 2A10 28 29 2OE2 2OE1 2A1 2A2 2A3 2A4 2A8 1A10 2Y2 2Y5 1A10 2A9 2A10 2 1 & 56 28 29 55 54 & EN1 EN2 1 1 2 3 52 5 51 6 49 8 48 9 47 10 12 45 44 13 43 14 42 41 40 38 1 2 15 16 17 19 36 20 21 34 23 33 24 31 26 30 27 37 1Y1 1Y2 1Y3 1Y4 1Y5 1Y6 1Y7 1Y8 1Y9 1Y10 2Y1 2Y2 2Y3 2Y4 2Y5 2Y6 2Y7 2Y8 2Y9 2Y10 2007-10-19 TC74VCXH162827FT Truth Table (each 10-bit latch) Inputs Outputs Y OE1 OE2 A L L L L L L H H H X X Z X H X 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 Rating Unit VCC −0.5 to 4.6 V VIN −0.5 to 4.6 −0.5 to VCC + 0.5 V −0.5 to 4.6 (Note 2) DC output voltage VOUT −0.5 to VCC + 0.5 V (Note 3) Input diode current IIK −50 Output diode current IOK ±50 Output current IOUT ±50 mA PD 400 mW ICC/IGND ±100 mA Tstg −65 to 150 °C Power dissipation DC VCC/ground current per supply pin Storage temperature mA (Note 4) 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: 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 Symbol Power supply voltage Input voltage VCC ( OE ) VIN (An) Output voltage Output current Rating Unit 1.8 to 3.6 1.2 to 3.6 (Note 3) −0.3 to 3.6 V 0 to VCC 0 to 3.6 (Note 4) VOUT 0 to VCC (Note 5) IOH/IOL ±12 (Note 6) ±8 (Note 7) ±4 (Note 8) Operating temperature Topr −40 to 85 Input rise and fall time dt/dv 0 to 10 V V mA °C (Note 9) 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. 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 85°C, 2.7 V < VCC =< 3.6 V) Characteristics Input voltage Symbol Test Condition H-level VIH ⎯ L-level VIL ⎯ Min Max 2.7 to 3.6 2.0 ⎯ 2.7 to 3.6 ⎯ 0.8 2.7 to 3.6 VCC − 0.2 ⎯ IOH = −6 mA 2.7 2.2 ⎯ IOH = −8 mA 3.0 2.4 ⎯ IOH = −12 mA 3.0 2.2 ⎯ IOL = 100 μA VCC (V) IOH = −100 μA H-level VOH VIN = VIH or VIL Output voltage L-level Input leakage current ( OE ) (An) Bushold input minimum drive hold current VOL IIN II (HOLD) Bushold input over-drive current to change state II (OD) 3-state output OFF state current IOZ Power-off leakage current IOFF Quiescent supply current ICC Increase in ICC per input ΔICC Unit V V 2.7 to 3.6 ⎯ 0.2 IOL = 6 mA 2.7 ⎯ 0.4 IOL = 8 mA 3.0 ⎯ 0.5 IOL = 12 mA 3.0 ⎯ 0.8 VIN = 0 to 3.6 V 2.7 to 3.6 ⎯ ±5.0 VIN = VCC or GND 2.7 to 3.6 ⎯ ±5.0 VIN = 0.8 V 3.0 75 ⎯ VIN = 2.0 V 3.0 −75 ⎯ (Note 1) 3.6 ⎯ 450 (Note 2) 3.6 ⎯ −450 2.7 to 3.6 ⎯ ±10.0 μA 0 ⎯ 10.0 μA VIN = VIH or VIL 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 ⎯ 20.0 (Note 3) 2.7 to 3.6 ⎯ ±20.0 2.7 to 3.6 ⎯ 750 μA μA μA μA μA 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 85°C, 2.3 V =< VCC =< 2.7 V) Characteristics Input voltage Symbol Test Condition H-level VIH ⎯ L-level VIL ⎯ Min Max 2.3 to 2.7 1.6 ⎯ 2.3 to 2.7 ⎯ 0.7 2.3 to 2.7 VCC − 0.2 ⎯ IOH = −4 mA 2.3 2.0 ⎯ IOH = −6 mA 2.3 1.8 ⎯ IOH = −8 mA 2.3 1.7 ⎯ IOL = 100 μA VCC (V) IOH = −100 μA H-level VOH VIN = VIH or VIL Output voltage L-level Input leakage current ( OE ) (An) Bushold input minimum drive hold current VOL IIN II (HOLD) Bushold input over-drive current to change state II (OD) 3-state output OFF state current IOZ Power-off leakage current IOFF Quiescent supply current ICC Unit V V 2.3 to 2.7 ⎯ 0.2 IOL = 6 mA 2.3 ⎯ 0.4 IOL = 8 mA 2.3 ⎯ 0.6 VIN = 0 to 3.6 V 2.3 to 2.7 ⎯ ±5.0 VIN = VCC or GND 2.3 to 2.7 ⎯ ±5.0 VIN = 0.7 V 2.3 45 ⎯ VIN = 1.6 V 2.3 −45 ⎯ (Note 1) 2.7 ⎯ 300 (Note 2) 2.7 ⎯ −300 2.3 to 2.7 ⎯ ±10.0 μA VOUT = 0 to 3.6 V 0 ⎯ 10.0 μA VIN = VCC or GND 2.3 to 2.7 ⎯ 20.0 (Note 3) 2.3 to 2.7 ⎯ ±20.0 VIN = VIH or VIL VIN = VIH or VIL VOUT = 0 to 3.6 V VCC < = VOUT < = 3.6 V μA μA μA μA 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 85°C, 1.8 V =< VCC < 2.3 V) Characteristics Symbol Test Condition H-level VIH ⎯ L-level VIL ⎯ H-level VOH Min Max 1.8 to 2.3 0.7 × VCC ⎯ 1.8 to 2.3 ⎯ 0.2 × VCC IOH = −100 μA 1.8 VCC − 0.2 ⎯ IOH = −4 mA 1.8 1.4 ⎯ IOL = 100 μA 1.8 ⎯ 0.2 IOL = 4 mA 1.8 ⎯ 0.3 VIN = 0 to 3.6 V 1.8 ⎯ ±5.0 VIN = VCC or GND 1.8 ⎯ ±5.0 VIN = 0.36 V 1.8 25 ⎯ VIN = 1.26 V 1.8 −25 ⎯ (Note 1) 1.8 ⎯ 200 (Note 2) 1.8 ⎯ −200 1.8 ⎯ ±10.0 μA VOUT = 0 to 3.6 V 0 ⎯ 10.0 μA VIN = VCC or GND 1.8 ⎯ 20.0 1.8 ⎯ ±20.0 VCC (V) Input voltage VIN = VIH or VIL Output voltage L-level Input leakage current ( OE ) (An) Bushold input minimum drive hold current VIN = VIH or VIL VOL IIN II (HOLD) Bushold input over-drive current to change state II (OD) 3-state output OFF state current IOZ Power-off leakage current IOFF Quiescent supply current ICC VIN = VIH or VIL VOUT = 0 to 3.6 V VCC < = VOUT < = 3.6 V (Note 3) Unit V V μA μA μA μA 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 85°C, input: tr = tf = 2.0 ns, CL = 30 pF, RL = 500 Ω) (Note 1) Characteristics Symbol Test Condition Min Max 1.8 1.5 8.2 2.5 ± 0.2 1.0 4.1 3.3 ± 0.3 0.8 3.4 1.8 1.5 9.8 2.5 ± 0.2 1.0 5.9 3.3 ± 0.3 0.8 4.3 1.8 1.5 8.8 2.5 ± 0.2 1.0 4.9 3.3 ± 0.3 0.8 4.3 1.8 ⎯ 0.5 (Note 2) 2.5 ± 0.2 ⎯ 0.5 3.3 ± 0.3 ⎯ 0.5 Unit VCC (V) Propagation delay time 3-state output enable time 3-state output disable time Output to output skew tpLH tpHL tpZL tpZH tpLZ tpHZ Figure 1, Figure 2 Figure 1, Figure 3 Figure 1, Figure 3 tosLH tosHL ns ns ns 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 = 25°C, input: tr = tf = 2.0 ns, CL = 30 pF, RL = 500 Ω) Characteristics Test Condition Symbol Typ. Unit VCC (V) Quiet output maximum dynamic VOL Quiet output minimum dynamic VOL Quiet output minimum dynamic VOH Note: VOLP VOLV VOHV VIH = 1.8 V, VIL = 0 V (Note) 1.8 0.15 VIH = 2.5 V, VIL = 0 V (Note) 2.5 0.25 VIH = 3.3 V, VIL = 0 V (Note) 3.3 0.35 VIH = 1.8 V, VIL = 0 V (Note) 1.8 −0.15 VIH = 2.5 V, VIL = 0 V (Note) 2.5 −0.25 VIH = 3.3 V, VIL = 0 V (Note) 3.3 −0.35 VIH = 1.8 V, VIL = 0 V (Note) 1.8 1.55 VIH = 2.5 V, VIL = 0 V (Note) 2.5 2.05 VIH = 3.3 V, VIL = 0 V (Note) 3.3 2.65 V V V Parameter guaranteed by design. Capacitive Characteristics (Ta = 25°C) Characteristics Symbol Test Condition Input capacitance CIN ⎯ Output capacitance CO ⎯ Power dissipation capacitance CPD Note: Typ. Unit 1.8, 2.5, 3.3 6 pF 1.8, 2.5, 3.3 7 pF 1.8, 2.5, 3.3 20 pF VCC (V) fIN = 10 MHz (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) = CPD･VCC･fIN + ICC/20 (per bit) 9 2007-10-19 TC74VCXH162827FT AC Test Circuit RL Switch RL Measure CL Output 6.0 V or VCC × 2 Open GND Parameter Switch tpLH, tpHL Open tpLZ, tpZL CL = 30 pF RL = 500 Ω 6.0 V VCC × 2 tpHZ, tpZH @VCC = 3.3 ± 0.3 V @VCC = 2.5 ± 0.2 V @VCC = 1.8 V GND Figure 1 AC Waveform tr 2.0 ns tf 2.0 ns 90% VM Input (A) VIH 10% GND VOH Output (Y) VM tpHL tpLH VOL Figure 2 tpLH, tpHL 10 2007-10-19 TC74VCXH162827FT tr 2.0 ns tf 2.0 ns 90% VM Output Enable Control ( OE ) VIH 10% tpLZ GND tpZL 3.0 V or VCC Output (Y) Low to Off to Low VM tpHZ VX VOH VY Output (Y) High to Off to High VOL tpZH VM GND Outputs enabled Outputs enabled Outputs disabled Figure 3 tpLZ, tpHZ, tpZL, tpZH Symbol VCC 3.3 ± 0.3 V 2.5 ± 0.2 V 1.8 V VIH 2.7 V VCC VCC VM 1.5 V VCC/2 VCC/2 VX VOL + 0.3 V VOL + 0.15 V VOL + 0.15 V VY VOH − 0.3 V VOH − 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 20070701-EN GENERAL • The information contained herein is subject to change without notice. • 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