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PDF U74AHC157 Data sheet ( Hoja de datos )

Número de pieza U74AHC157
Descripción QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS / MULTIPLEXERS
Fabricantes Unisonic Technologies 
Logotipo Unisonic Technologies Logotipo



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No Preview Available ! U74AHC157 Hoja de datos, Descripción, Manual

UNISONIC TECHNOLOGIES CO., LTD
U74AHC157
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
CMOS IC
„ ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
U74AHC157L-P16-R
U74AHC157G-P16-R
U74AHC157L-P16-T
U74AHC157G-P16-T
Package
TSSOP-16
TSSOP-16
Packing
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
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U74AHC157 pdf
U74AHC157
„ TEST CIRCUIT AND WAVEFORMS
CMOS IC
VCC
3.3V±0.3V
5V±0.5V
Input
VIN tR, tF
VCC 3ns
VCC 3ns
Input
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
VLOAD
GND
VM
VCC/2
VCC/2
tW
VLOAD
VCC
VCC
CL
15pF
50pF
15pF
50pF
VM
Pulse Duration
VM
RL
1k
1k
VIN
0
V
VΔ
0.3V
0.5V
Timing Input
Data Input
VM
tSU tH
VM VM
Setup and Hold Times
VIN
0V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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