TC74VCX244FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VCX244FT, TC74VCX244FK Low-Voltage Octal Bus Buffer with 3.6 V Tolerant Inputs and Outputs The TC74VCX244 is a high performance CMOS octal bus buffer which is guaranteed to operate from 1.2-V to 3.6-V. Designed for use in 1.5V, 1.8 V, 2.5 V or 3.3 V systems, it achieves high speed operation while maintaining the CMOS low power dissipation. It is also designed with over voltage tolerant inputs and outputs up to 3.6 V. This device is non-inverting 3-state buffer having four active-low output enables. 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. All inputs are equipped with protection circuits against static discharge. TC74VCX244FT TC74VCX244FK Features • Low voltage operation: VCC = 1.2~3.6 V • High speed operation: tpd = 3.5 ns (max) (VCC = 3.0~3.6 V) tpd = 4.2 ns (max) (VCC = 2.3~2.7 V) tpd = 8.4 ns (max) (VCC = 1.65~1.95 V ) tpd = 16.8 ns (max) (VCC = 1.4~1.6 V) tpd = 42.0 ns (max) (VCC = 1.2 V) • 3.6 V tolerant inputs and outputs. • Output current: IOH/IOL = ±24 mA (min) (VCC = 3.0 V) Weight TSSOP20-P-0044-0.65A VSSOP20-P-0030-0.50 : 0.08 g (typ.) : 0.03 g (typ.) IOH/IOL = ±18 mA (min) (VCC = 2.3 V) IOH/IOL = ±6 mA (min) (VCC = 1.65 V) IOH/IOL = ±2mA (min) (VCC = 1.4 V) • Latch-up performance: −300 mA • ESD performance: Machine model ≥ ±200 V Human body model ≥ ±2000 V • Package: TSSOP and VSSOP (US) • Power down protection is provided on all inputs and outputs. • 1 2007-10-19 TC74VCX244FT/FK Pin Assignment (top view) IEC Logic Level 1OE 1OE 1 20 VCC 1A1 2 19 2OE 2Y4 3 18 1Y1 1A2 4 17 2A4 2Y3 5 16 1Y2 1A3 6 15 2A3 2Y2 7 14 1Y3 1A4 8 13 2A2 2Y1 9 12 1Y4 GND 10 11 2A1 1A1 1A2 1A3 1A4 2OE 2A1 2A2 2A3 2A4 1 EN 18 16 14 12 2 4 6 8 19 11 13 15 17 1Y1 1Y2 1Y3 1Y4 EN 9 7 5 3 2Y1 2Y2 2Y3 2Y4 (top view) Truth Table Inputs Outputs OE An L L L L H H H X Z X: Don’t care Z: High impedance 2 2007-10-19 TC74VCX244FT/FK Absolute Maximum Ratings (Note 1) Characteristics Symbol Rating Unit Power supply voltage VCC −0.5~4.6 V DC input voltage VIN −0.5~4.6 V −0.5~4.6 (Note 2) DC output voltage VOUT Input diode current IIK −50 Output diode current IOK ±50 DC output current IOUT ±50 mA Power dissipation PD 180 mW ICC/IGND ±100 mA Tstg −65~150 °C DC VCC/ground current Storage temperature −0.5~VCC + 0.5 V (Note 3) 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 Operating Ranges (Note 1) Characteristics Symbol Rating Unit Supply voltage VCC 1.2~3.6 V Input voltage VIN −0.3~3.6 V Output voltage Output current VOUT IOH/IOL 0~3.6 (Note 2) 0~VCC (Note 3) ±24 (Note 4) ±18 (Note 5) ±6 (Note 6) ±2 (Note 7) Operating temperature Topr −40~85 Input rise and fall time dt/dv 0~10 V 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. Note 2: Off-state Note 3: High or low state Note 4: VCC = 3.0~3.6 V Note 5: VCC = 2.3~2.7 V Note 6: VCC = 1.65~1.95 V Note 7: VCC = 1.4~1.6 V Note 8: VIN = 0.8~2.0 V, VCC = 3.0 V 3 2007-10-19 TC74VCX244FT/FK Electrical Characteristics DC Characteristics (Ta = −40~85°C, 2.7 V < VCC =< 3.6 V) Characteristics Input voltage Symbol Test Condition High level VIH ⎯ Low level VIL ⎯ High level VOH Min Max 2.7~3.6 2.0 ⎯ 2.7~3.6 ⎯ 0.8 IOH = −100 μA 2.7~3.6 VCC − 0.2 ⎯ IOH = −12 mA 2.7 2.2 ⎯ IOH = −18 mA 3.0 2.4 ⎯ IOH = −24 mA 3.0 2.2 ⎯ IOL = 100 μA 2.7~3.6 ⎯ 0.2 IOL = 12 mA 2.7 ⎯ 0.4 IOL = 18 mA 3.0 ⎯ 0.4 IOL = 24 mA 3.0 ⎯ 0.55 2.7~3.6 ⎯ ±5.0 μA 2.7~3.6 ⎯ ±10.0 μA 0 ⎯ 10.0 μA VIN = VCC or GND 2.7~3.6 ⎯ 20.0 VCC < = (VIN, VOUT) < = 3.6 V 2.7~3.6 ⎯ ±20.0 VIH = VCC − 0.6 V (per input) 2.7~3.6 ⎯ 750 Min Max VIN = VIH or VIL Output voltage Low level VOL Input leakage current IIN 3-state output off-state current IOZ Power off leakage current IOFF Quiescent supply current ICC ΔICC VIN = VIH or VIL VIN = 0~3.6 V VIN = VIH or VIL VOUT = 0~3.6 V VIN, VOUT = 0~3.6 V VCC (V) Unit V V μA DC Characteristics (Ta = −40~85°C, 2.3 V =< VCC =< 2.7 V) Characteristics Input voltage Symbol Test Condition High level VIH ⎯ 2.3~2.7 1.6 ⎯ Low level VIL ⎯ 2.3~2.7 ⎯ 0.7 2.3~2.7 VCC − 0.2 ⎯ IOH = −6 mA 2.3 2.0 ⎯ IOH = −12 mA 2.3 1.8 ⎯ IOH = −18 mA 2.3 1.7 ⎯ IOL = 100 μA 2.3~2.7 ⎯ 0.2 IOL = 12 mA 2.3 ⎯ 0.4 IOL = 18 mA 2.3 ⎯ 0.6 2.3~2.7 ⎯ ±5.0 μA 2.3~2.7 ⎯ ±10.0 μA 0 ⎯ 10.0 μA VIN = VCC or GND 2.3~2.7 ⎯ 20.0 VCC < = (VIN, VOUT) < = 3.6 V 2.3~2.7 ⎯ ±20.0 IOH = −100 μA High level VOH VIN = VIH or VIL Output voltage Low level VOL VIN = VIH or VIL VIN = 0~3.6 V Input leakage current 3-state output off-state current IOZ Power off leakage current IOFF Quiescent supply current ICC VIN = VIH or VIL VOUT = 0~3.6 V VIN, VOUT = 0~3.6 V 4 VCC (V) Unit V V μA 2007-10-19 TC74VCX244FT/FK DC Characteristics (Ta = −40~85°C, 1.65 V =< VCC < 2.3 V) Characteristics Symbol Test Condition High level VIH ⎯ Low level VIL ⎯ High level VOH Min Max 1.65~2.3 0.65 × VCC ⎯ 1.65~2.3 ⎯ 0.2 × VCC 1.65~2.3 VCC − 0.2 ⎯ IOH = −6 mA 1.65 1.25 ⎯ IOL = 100 μA 1.65~2.3 ⎯ 0.2 1.65 ⎯ 0.3 1.65~2.3 ⎯ ±5.0 μA 1.65~2.3 ⎯ ±10.0 μA 0 ⎯ 10.0 μA VIN = VCC or GND 1.65~2.3 ⎯ 20.0 VCC < = (VIN, VOUT) < = 3.6 V 1.65~2.3 ⎯ ±20.0 Min Max VCC (V) Input voltage IOH = −100 μA VIN = VIH or VIL Output voltage Low level VOL Input leakage current IIN 3-state output off-state current IOZ Power off leakage current IOFF Quiescent supply current ICC VIN = VIH or VIL IOL = 6 mA VIN = 0~3.6 V VIN = VIH or VIL VOUT = 0~3.6 V VIN, VOUT = 0~3.6 V Unit V V μA DC Characteristics (Ta = −40~85°C, 1.4 V =< VCC<1.65 V) Characteristics Symbol Test Condition High level VIH ⎯ 1.4~1.65 0.65 × VCC ⎯ Low level VIL ⎯ 1.4~1.65 ⎯ 0.05 × VCC High level VOH 1.4~1.65 VCC − 0.1 ⎯ IOH = −2 mA 1.4 1.05 ⎯ IOL = 100 μA 1.4~1.65 ⎯ 0.05 VCC (V) Input voltage IOH = −100 μA VIN = VIH or VIL Output voltage Low level VOL VIN = VIH or VIL IOL = 2 mA 3-state output off-state current IOZ Power off leakage current IOFF Quiescent supply current ICC V V 1.4 ⎯ 0.35 1.4~1.65 ⎯ ±5.0 μA 1.4~1.65 ⎯ ±10.0 μA 0 ⎯ 10.0 μA VIN = VCC or GND 1.4~1.65 ⎯ 20.0 VCC < = (VIN, VOUT) < = 3.6 V 1.4~1.65 ⎯ ±20.0 VIN = 0~3.6 V Input leakage current Unit VIN = VIH or VIL VOUT = 0~3.6 V VIN, VOUT = 0~3.6 V 5 μA 2007-10-19 TC74VCX244FT/FK DC Characteristics (Ta = −40~85°C, 1.2 V =< VCC < 1.4 V) Characteristics Symbol Test Condition High level VIH ⎯ Low level VIL ⎯ High level VOH VIN = VIH or VIL Low level VOL VIN = VIH or VIL Min Max 1.2~1.4 0.8 × VCC ⎯ 1.2~1.4 ⎯ 0.05 × VCC IOH = −100 μA 1.2 VCC − 0.1 ⎯ IOL = 100 μA 1.2 ⎯ 0.05 1.2 ⎯ ±5.0 μA 1.2 ⎯ ±10.0 μA 0 ⎯ 10.0 μA VIN = VCC or GND 1.2 ⎯ 20.0 VCC < = (VIN, VOUT) < = 3.6 V 1.2 ⎯ ±20.0 Min Max 1.2 3.0 42.0 1.5 ± 0.1 2.0 16.8 1.8 ± 0.15 1.5 8.4 2.5 ± 0.2 0.8 4.2 3.3 ± 0.3 0.6 3.5 1.2 3.0 49.0 1.5 ± 0.1 2.0 19.6 1.8 ± 0.15 1.5 9.8 2.5 ± 0.2 0.8 5.5 3.3 ± 0.3 0.6 4.5 1.2 3.0 29.0 1.5 ± 0.1 2.0 11.6 1.8 ± 0.15 1.5 5.8 2.5 ± 0.2 0.8 3.2 3.3 ± 0.3 0.6 3.0 1.2 ⎯ 1.5 1.5 ± 0.1 ⎯ 1.5 1.8 ± 0.15 ⎯ 0.5 2.5 ± 0.2 ⎯ 0.5 3.3 ± 0.3 ⎯ 0.5 VCC (V) Input voltage Output voltage Input leakage current IIN 3-state output off-state current IOZ Power off leakage current IOFF Quiescent supply current ICC VIN = 0~3.6 V VIN = VIH or VIL VOUT = 0~3.6 V VIN, VOUT = 0~3.6 V Unit V V μA AC Characteristics (Ta = −40~85°C, Input: tr = tf = 2.0 ns) (Note 1) Characteristics Symbol Test Condition CL = 15 pF, RL = 2 kΩ Propagation delay time tpLH tpHL Figure 1, Figure 2 CL = 30 pF, RL = 500 Ω CL = 15 pF, RL = 2 kΩ 3-state output enable time tpZL tpZH Figure 1, Figure 3 CL = 30 pF, RL = 500 Ω CL = 15 pF, RL = 2 kΩ 3-state output disable time tpLZ tpHZ Figure 1, Figure 3 CL = 30 pF, RL = 500 Ω CL = 15 pF, RL = 2 kΩ Output to output skew tosLH tosHL (Note 2) CL = 30 pF, RL = 500 Ω VCC (V) Unit ns ns ns ns Note 1: For CL = 50 pF, add approximately 300 ps to the AC maximum specification. Note 2: This parameter is guaranteed by design. (tosLH = |tpLHm − tpLHn|, tosHL = |tpHLm − tpHLn|) 6 2007-10-19 TC74VCX244FT/FK Dynamic Switching Characteristics (Ta = 25°C, Input: tr = tf = 2.0 ns, CL = 30 pF) Characteristics Quiet output maximum dynamic VOL Quiet output minimum dynamic VOL Quiet output minimum dynamic VOH Note: Symbol VOLP VOLV VOHV Test Condition VCC (V) Typ. VIH = 1.8 V, VIL = 0 V (Note) 1.8 0.25 VIH = 2.5 V, VIL = 0 V (Note) 2.5 0.6 VIH = 3.3 V, VIL = 0 V (Note) 3.3 0.8 VIH = 1.8 V, VIL = 0 V (Note) 1.8 −0.25 VIH = 2.5 V, VIL = 0 V (Note) 2.5 −0.6 VIH = 3.3 V, VIL = 0 V (Note) 3.3 −0.8 VIH = 1.8 V, VIL = 0 V (Note) 1.8 1.5 VIH = 2.5 V, VIL = 0 V (Note) 2.5 1.9 VIH = 3.3 V, VIL = 0 V (Note) 3.3 2.2 Unit V V V This parameter is guaranteed by design. Capacitive Characteristics (Ta = 25°C) Characteristics Symbol Test Condition Input capacitance CIN ⎯ Output capacitance CO ⎯ Power dissipation capacitance CPD Note: fIN = 10 MHz 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) (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/8 (per bit) 7 2007-10-19 TC74VCX244FT/FK AC Test Circuit 6.0 V or VCC × 2 Open GND RL Switch Measure Parameter VCC Switch tpLH, tpHL tpLZ, tpZL RL CL Output Open 6.0 V VCC × 2 tpHZ, tpZH @VCC = 3.3 ± 0.3 V @VCC = 2.5 ± 0.2 V @VCC = 1.8 ± 0.15 V @VCC = 1.5 ± 0.1 V @VCC = 1.2 V Symbol 3.3 ± 0.3 V 2.5 ± 0.2 V 1.8 ± 0.15 V 1.5 ± 0.1 V 1.2 V RL 500Ω 2kΩ CL 30pF 15pF GND Figure 1 AC Waveform tf 2.0 ns tr 2.0 ns VIH 90% VM Input (A) 10% GND VOH Output (Y) VM tpLH tpHL VOL Figure 2 tpLH, tpHL 8 2007-10-19 TC74VCX244FT/FK tf 2.0 ns tr 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 tpHZ VM VX VOH VY Output (Y) High to Off to High VOL tpZH VM GND Outputs enabled Outputs disabled Outputs enabled Figure 3 tpLZ, tpHZ, tpZL, tpZH Symbol VCC 3.3 ± 0.3 V 2.5 ± 0.2 V 1.8 ± 0.15 V 1.5 ± 0.1 V 1.2 V VIH 2.7 V VCC VCC VCC VCC VM 1.5 V VCC/2 VCC/2 VCC/2 VCC/2 VX VOL + 0.3 V VOL + 0.15 V VOL + 0.15 V VOL + 0.1 V VOL + 0.1 V VY VOH − 0.3 V VOH − 0.15 V VOH − 0.15 V VOH − 0.1 V VOH − 0.1 V 9 2007-10-19 TC74VCX244FT/FK Package Dimensions Weight: 0.08 g (typ.) 10 2007-10-19 TC74VCX244FT/FK Package Dimensions Weight: 0.03 g (typ.) 11 2007-10-19 TC74VCX244FT/FK 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. 12 2007-10-19