UNISONIC TECHNOLOGIES CO., LTD U74LVC640 CMOS IC OCTAL BUS TRANSCEIVER WITH 3-STATE INVERTING OUTPUTS DESCRIPTION The U74LVC640 is designed for asynchronous communication between data buses and has inverting outputs. While the direction-control(DIR) input is high, data transmits from the A bus to the B bus. In contrast, Data transmits from the B bus to the A bus DIR input is low. The output-enable(OE) will disable the device and isolate from the buses when high voltage is applied on it. TSSOP-20 FEATURES * Supply Voltage Range From 1.2V to 3.6V * Input Accept Voltages up to 5.5V * Partial-Power-Down Mode Operation * Max tPD is 6.3ns at 3.3V ORDERING INFORMATION Ordering Number U74LVC640G-P20-R Package TSSOP-20 www.unisonic.com.tw Copyright © 2010 Unisonic Technologies Co., Ltd Packing Tape Reel 1 of 5 QW-R502-412.A U74LVC640 PIN CONFIGURATION DIR 1 20 VCC A1 2 19 A2 3 18 B1 A3 4 17 B2 A4 5 16 B3 A5 6 15 B4 A6 7 14 B5 A7 8 13 B6 A8 9 12 B7 GND 10 11 B8 OE FUNCTION TABLE INPUT OE H L L Note: H: HIGH voltage level CMOS IC FUNCTION DIR X Isolation H Transmit data from A bus to B bus, B=A L Transmit data from B bus to A bus, A=B L: LOW voltage level X: Don’t care LOGIC DIAGRAM (Negative Logic) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R502-412.A U74LVC640 CMOS IC ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC -0.5~6.5 V Input Voltage VIN -0.5~ 6.5 V Voltage Applied To Output In High-Impedance Or Power-Off State -0.5~6.5 VOUT V Voltage applied to output in high or low state -0.5~Vcc+0.5 Input Clamp Current IIK -50 mA Output Clamp Current IOK -50 mA Output Current IOUT ±50 mA VCC or GND Current ICC ±100 mA °C Storage Temperature TSTG -65 ~ +150 Note: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. OPERATING CHARACTERISTICS PARAMETER Power Dissipation Capacitance Per Transceiver SYMBOL CPD TEST CONDITIONS VCC =1.8V ΟΕ =0 VCC =2.5V f=10MHZ VCC =3.3V VCC =1.8V ΟΕ =1 VCC =2.5V f=10MHZ VCC =3.3V TYP 42 43 45 1 1 2 UNIT pF RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL Supply Voltage VCC High-Level Input Voltage VIH Low-Level Input Voltage VIL Input Voltage Output Voltage TEST CONDITIONS Operating Data retention only VCC = 1.65 V ~ 1.95 V VCC = 2.3 V ~ 2.7 V VCC = 2.7 V ~ 3.6 V VCC = 1.65 V ~ 1.95 V VCC = 2.3 V ~ 2.7 V VCC = 2.7 V ~ 3.6 V VIN VOUT Output High Current IOH Output Low Current IOL VCC = 1.65 V VCC = 2.3 V VCC = 2.7 V VCC = 3 V VCC = 1.65 V VCC = 2.3 V VCC = 2.7 V VCC = 3 V TYP Max 3.6 UNIT V 0.65*Vcc V 1.7 2 0.35*Vcc 0 0 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw Min 1.65 1.5 0.7 0.8 5.5 Vcc -4 -8 -12 -24 4 8 12 24 V V V mA mA 3 of 5 QW-R502-412.A U74LVC640 CMOS IC ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL High-Level Output Voltage VOH Low-Level Output Voltage VOL Input Current Power OFF Leakage Current Output Off-State Current II(LEAK) IOFF IOZ Quiescent Supply Current Additional Quiescent Current Per Input Pin IQ ΔIQ TEST CONDITIONS Min IOH = –100μA,VCC=1.65 V to 3.6 V Vcc-0.2 IOH = –4mA, VCC=1.65V 1.29 IOH = –8mA , VCC=2.3V 1.9 IOH = –12mA , VCC=2.7V 2.2 IOH = –12mA , VCC=3V 2.4 IOH = –24mA , VCC=3V 2.3 IOH = 100μA, VCC=1.65 V to 3.6 V IOH = 4mA, VCC=1.65V IOH = 8mA, VCC=2.3V IOH = 12mA , VCC=2.7V IOH = 24mA , VCC=3V VIN = 5.5 V or GND , VCC=3.6V VIN = 5.5 V or GND , VCC=0V VOUT = 0 to 5.5 V , VCC=3.6V VIN=VCC or GND,IOUT=0,VCC=3.6V VIN=3.6~5.5v,IOUT=0,VCC=3.6V VCC=2.7V ~ 3.6V, VIN= VCC -0.6V, IOUT=0 TYP Max UNIT V 0.1 0.24 0.3 0.4 0.55 ±1 ±1 ±1 1 1 μA μA μA μA μA 500 μA Max 12.2 7.8 7.1 6.1 14.8 10 9.3 8.3 16.5 9 8.3 7.3 UNIT V SWITCHING CHARACTERISTICS PARAMETER SYMBOL Propagation Delay (From A to B Or From B to A) tPLH / tPHL 3-State Output Enable Time ( From ΟΕ to A or B) tPZH / tPZL 3-State Output Disable Time ( From ΟΕ A to A or B) tPLZ / tPLH TEST CONDITIONS VCC =1.8 V ± 0.15 V VCC =2.5 V ± 0.2 V VCC =2.7 V VCC =3.3 V ± 0.3 V VCC =1.8 V ± 0.15 V VCC =2.5 V ± 0.2 V VCC =2.7 V VCC =3.3 V ± 0.3 V VCC =1.8 V ± 0.15 V VCC =2.5 V ± 0.2 V VCC =2.7 V VCC =3.3 V ± 0.3 V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw Min 1 1 1 1.5 1 1 1 1.5 1 1 1 1.7 TYP 6 3.9 4.2 3.8 7 4.5 5.4 4.4 7.8 4 4.4 4.1 ns ns ns 4 of 5 QW-R502-412.A U74LVC640 CMOS IC TEST CIRCUIT AND WAVEFORMS S From Output CL VCC 1.8V ±0.15V 2.5V ±0.2V 2.7 V 3.3V ±0.3V VLOAD Open GND RL TEST tPLH/tPHL tPHZ/tPZH tPLZ/tPZL S Open GND VLOAD RL INPUTS VIN tR/tF VCC ≤2ns VCC ≤2ns 2.7 V ≤2.5ns 2.7 V ≤2.5ns VM V△ CL RL VLOAD VCC/2 VCC/2 1.5V 1.5V 0.15V 0.15V 0.3V 0.3V 30 pF 30 pF 50 pF 50 pF 1 KΩ 500Ω 500Ω 500Ω 2 x VCC 2 x VCC 6V 6V Note: CL includes probe and jig capacitance. All input pulses are supplied by generators having the following characteristics: PRR ≤10MHz, Zo = 50Ω. UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 5 QW-R502-412.A