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U74HC157 Dataheets PDF



Part Number U74HC157
Manufacturers Unisonic Technologies
Logo Unisonic Technologies
Description QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS / MULTIPLEXERS
Datasheet U74HC157 DatasheetU74HC157 Datasheet (PDF)

UNISONIC TECHNOLOGIES CO., LTD U74HC157 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS / MULTIPLEXERS „ DESCRIPTION SOP-16 CMOS IC The U74HC157 is a quadruple 2-line to 1-line data selectors/multiplexers. 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 TSSOP-16 * Wide supply voltage range from 2V to 6V * Typical tPD at 11ns from A or B to Y at 6V, CL=50pF * Low power co.

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UNISONIC TECHNOLOGIES CO., LTD U74HC157 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS / MULTIPLEXERS „ DESCRIPTION SOP-16 CMOS IC The U74HC157 is a quadruple 2-line to 1-line data selectors/multiplexers. 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 TSSOP-16 * Wide supply voltage range from 2V to 6V * Typical tPD at 11ns from A or B to Y at 6V, CL=50pF * Low power consumption, ICC = 8 μA (MAX) at 6V * ±6 mA output driver at 5V * Low Input Current of 0.1uA Max „ ORDERING INFORMATION Ordering Number Lead Free Halogen Free U74HC157L-S16-R U74HC157G-S16-R U74HC157L-S16-T U74HC157G-S16-T U74HC157L-P16-R U74HC157G-P16-R U74HC157L-P16-T U74HC157G-P16-T Package SOP-16 SOP-16 TSSOP-16 TSSOP-16 Packing Tape Reel Tube Tape Reel Tube www.DataSheet.net/ www.unisonic.com.tw Copyright © 2012 Unisonic Technologies Co., Ltd 1 of 6 QW-R502-812.A Datasheet pdf - http://www.DataSheet4U.co.kr/ U74HC157 „ PIN CONFIGURATION CMOS IC „ FUNCTION TABLE INPUTS G OUTPUTS A X L H X X B X X X L H www.DataSheet.net/ H L L L L A/B X L L H H Y L L H L H „ LOGIC DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R502-812.A Datasheet pdf - http://www.DataSheet4U.co.kr/ U74HC157 „ ABSOLUTE MAXIMUM RATING (TA =25°C , unless otherwise specified) CMOS IC PARAMETER SYMBOL RATINGS UNIT Supply Voltage Range VCC -0.5~7 V Input Clamp Current (VIN<0) IIK ±20 mA Output Clamp Current (VOUT<0, or VOUT>VCC) IOK ±20 mA Output Current IOUT ±35 mA VCC or GND Current ICC ±70 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. 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 CONDITIONS SYMBOL VCC VIH VCC=2V VCC=4.5V VCC=6V VCC=2V VCC=4.5V VCC=6V CONDITIONS MIN 2 1.5 3.15 4.2 TYP MAX UNIT 5 6 V V 0.5 V 1.35 1.8 VCC V VCC V 1000 500 ns/V 400 85 °C PARAMETER Supply Voltage High-Level Input Voltage Low-Level Input Voltage Input Voltage Output Voltage Input Transition Rise or Fall Rate Operating Temperature VIL VIN VOUT Δt/Δv 0 0 VCC=2V VCC=4.5V VCC=6V www.DataSheet.net/ TA -40 „ ELECTRICAL CHARACTERISTICS (TA =25°C , unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS IOH=-20 μA, VCC=2V IOH=-20 μA, VCC=4.5V IOH=-20 μA, VCC=6V IOH=-6 mA, VCC=4.5V IOH=-7.8 mA, VCC=6V IOH=20 μA, VCC=2V IOH=20 μA, VCC=4.5V IOH=20 μA, VCC=6V IOH=6 mA, VCC=4.5V IOH=7.8 mA, VCC=6V VIN=VCC or GND, VCC=6V VIN=VCC or GND, IOUT=0, VCC=6V VCC=6V MIN 1.9 4.4 5.9 3.98 5.48 TYP 1.998 4.499 5.999 4.3 5.8 0.002 0.001 0.001 0.17 0.15 ±0.1 3 MAX UNIT High-Level Output Voltage VOH V Low-Level Output Voltage VOL Input Leakage Current Quiescent Supply Current Input Capacitance II(LEAK) ICC CIN 0.1 0.1 0.1 0.26 0.26 ±100 8 10 V nA μA pF UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 6 QW-R502-812.A Datasheet pdf - http://www.DataSheet4U.co.kr/ U74HC157 „ SWITCHING CHARACTERISTICS See Fig. 1 and Fig. 2 for test circuit and waveforms. PARAMETER SYMBOL TEST CONDITIONS VCC=2V, CL=50pF VCC=2V, CL=150pF VCC=4.5V, CL=50pF Propagation delay from input A or B tpd to output Y, tpd VCC=4.5V, CL=150pF VCC=6V, CL=50pF VCC=6V, CL=150pF VCC=2V, CL=50pF VCC=2V, CL=150pF VCC=4.5V, CL=50pF Propagation delay from input A / B tpd VCC=4.5V, CL=150pF to output Y, tpd VCC=6V, CL=50pF VCC=6V, CL=150pF VCC=2V, CL=50pF VCC=2V, CL=150pF VCC=4.5V, CL=50pF Propagation delay from input G to tpd VCC=4.5V, CL=150pF output Y, tpd VCC=6V, CL=50pF VCC=6V, CL=150pF VCC=2V, CL=50pF VCC=2V, CL=150pF VCC=4.5V, CL=50pF Output Transition Time tT VCC=4.5V, CL=150pF VCC=6V, CL=50pF VCC=6V, CL=150pF Note: tPLH and tPHL is the same as tPd www.DataSheet.net/ CMOS IC MIN TYP MAX UNIT 63 125 81 190 13 25 ns 23 38 11 21 18 33 67 125 81 210 18 25 ns 23 42 14 21 18 36 59 115 91 190 16 23 ns 24 38 13 20 18 33 28 60 45 210 8 12 ns 17 42 6 10 13 36 „ OPERATING CHARACTERISTICS (TA =25°C , unless otherwise specified) SYMBOL CPD No load TEST CONDITIONS MIN TYP MAX UNIT 40 pF PARAMETER Power dissipation capacitance UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 6 QW-R502-812.A Datasheet pdf - http://www.DataSheet4U.co.kr/ U74HC157 „ TEST CIRCUIT AND WAVEFORMS CMOS IC Fig. 1 Load circuitry for switching times. www.DataSheet.net/ Fig. 2 Propagation delay from input to output and Output transition time. Notes: 1. CL includes probe and jig capacitance. 2. All input pulses are supplied by generators having the following characteristics: PRR ≤1MHz, ZO=50Ω, tR=6ns, tF=6ns. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 6 QW-R502-812.A Datasheet pdf - http://www.DataSheet4U.co.kr/ U74HC157 CMOS IC www.DataSheet.net/ UTC assumes no responsibility for e.


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