UNISONIC TECHNOLOGIES CO., LTD U74AHC157 CMOS IC QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS / MULTIPLEXERS DESCRIPTION The U74AHC157 is a quadruple 2-line to 1-line data selector/multiplexer. When G is high all outputs are low. When G is low a 4-bit word is selected from one of two sources and is routed to the four outputs. The device provides true data. FEATURES * Wide supply voltage range from 2V to 5.5V * Max tPD of 4.1ns from A or B to Y at 5V, CL=15pF * Low power consumption, ICC = 4 μA (MAX) at 5.5V * ±8 mA output driver at 5V ORDERING INFORMATION Ordering Number Lead Free Halogen Free U74AHC157L-P16-R U74AHC157G-P16-R U74AHC157L-P16-T U74AHC157G-P16-T www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd Package Packing TSSOP-16 TSSOP-16 Tape Reel Tube 1 of 6 QW-R502-626.A U74AHC157 CMOS IC PIN CONFIGURATION FUNCTION TABLE INPUTS G H L L L L A/B X L L H H A B OUTPUTS Y X L H X X X X X L H L L H L H LOGIC DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R502-626.A U74AHC157 CMOS IC ABSOLUTE MAXIMUM RATING (TA =25°C , unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Voltage Range VCC -0.5~7 V Input Voltage Range VIN -0.5~7 V Output Voltage Range VOUT -0.5~VCC +0.5 V Input Clamp Current (VIN<0) IIK -20 mA Output Clamp Current (VOUT<0, or VOUT>VCC) IOK ±20 mA Output Current IOUT ±25 mA VCC or GND Current ICC ±50 mA Storage Temperature TSTG -65 ~ +150 °C Note: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. Note: 2. 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. RECOMMENDED OPERATING COMDITIONS PARAMETER Supply Voltage SYMBOL VCC High-Level Input Voltage VIH Low-Level Input Voltage VIL Input Voltage Output Voltage IOH Low-level Output Current IOL Operating Temperature VCC = 2V VCC = 3V VCC = 5.5V VCC = 2V VCC = 3V VCC = 5.5V MIN 2 1.5 2.1 3.85 VIN VOUT High-level Output Current Input Transition Rise or Fall Rate CONDITIONS Δt/Δv TYP UNIT V V 0.5 0.9 1.65 5.5 VCC -50 -4 -8 50 4 8 100 20 85 0 0 VCC = 2V VCC = 3.3±0.3V VCC = 5±0.5V VCC = 2V VCC = 3.3±0.3V VCC = 5±0.5V VCC = 3.3±0.3V VCC = 5±0.5V TA MAX 5.5 -40 V V V μA mA μA mA ns/V °C ELECTRICAL CHARACTERISTICS (TA =25°C , unless otherwise specified) PARAMETER High-Level Output Voltage Low-Level Output Voltage Input Leakage Current (A or B inputs) Quiescent Supply Current Input Capacitance SYMBOL VOH VOL II(LEAK) ICC CIN TEST CONDITIONS IOH = -50 μA, VCC = 2V IOH = -50 μA, VCC = 3V IOH = -50 μA, VCC = 4.5V IOH = -4 mA, VCC = 3V IOH = -8 mA, VCC = 4.5V IOH = 50 μA, VCC = 2V IOH = 50 μA, VCC = 3V IOH = 50 μA, VCC = 4.5V IOH = 4 mA, VCC = 3V IOH = 8 mA, VCC = 4.5V TYP 2 3 4.5 VIN = 5.5V or GND, VCC = 0 to 5.5V VIN = VCC or GND, IOUT = 0, VCC = 5.5V VIN = VCC or GND, VCC=5V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 1.9 2.9 4.4 2.58 3.94 2 MAX UNIT V 0.1 0.1 0.1 0.36 0.36 V ±0.1 μA 4 10 μA pF 3 of 6 QW-R502-626.A U74AHC157 CMOS IC SWITCHING CHARACTERISTICS VCC = 3.3V ± 0.3V, TA =25°C PARAMETER SYMBOL tPLH Propagation delay from input A or B to output Y, tpd tPHL tPLH Propagation delay from input A / B to output Y, tpd tPHL tPLH Propagation delay from input G to output Y, tpd tPHL VCC = 5V ± 0.5V, TA =25°C PARAMETER SYMBOL tPLH Propagation delay from input A or B to output Y, tpd tPHL tPLH Propagation delay from input A / B to output Y, tpd tPHL tPLH Propagation delay from input G to output Y, tpd tPHL TEST CONDITIONS CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ MIN TYP 6.2 8.7 6.2 8.7 8.4 10.9 8.4 10.9 8.7 11.2 8.7 11.2 MAX UNIT 9.7 ns 13.2 9.7 ns 13.2 13.2 Ns 16.7 13.2 Ns 16.7 13.6 Ns 17.1 13.6 Ns 17.1 TEST CONDITIONS CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ MIN TYP 4.1 5.6 4.1 5.6 5.3 6.8 5.3 6.8 5.6 7.1 5.6 7.1 MAX UNIT 6.4 ns 8.4 6.4 ns 8.4 8.1 ns 10.1 8.1 ns 10.1 8.6 ns 10.6 8.6 ns 10.6 OPERATING CHARACTERISTICS (TA =25°C) PARAMETER Power dissipation capacitance UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw SYMBOL CPD TEST CONDITIONS VCC = 5V, f=1MHz, No load RATINGS 11 UNIT pF 4 of 6 QW-R502-626.A U74AHC157 CMOS IC TEST CIRCUIT AND WAVEFORMS TEST tPLH/tPHL tPLZ/tPZL tPHZ/tPZH S1 Open VLOAD GND VM VLOAD Input VCC VIN tR, tF 3.3V±0.3V VCC ≤3ns VCC/2 VCC 5V±0.5V VCC ≤3ns VCC/2 VCC CL 15pF 50pF 15pF 50pF RL VΔ 1kΩ 0.3V 1kΩ 0.5V tW VIN Input VM VM 0 V Pulse Duration Timing Input VM tSU tH VIN Data Input VM VM 0V Setup and Hold Times UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 6 QW-R502-626.A U74AHC157 CMOS IC TEST CIRCUIT AND WAVEFORMS(Cont.) Notes: 1. CL includes probe and jig capacitance. 2. All input pulses are supplied by generators having the following characteristics: PRR ≤1MHz, 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 6 of 6 QW-R502-626.A