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Número de pieza
componentes Descripción
M74HC157 Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
M74HC157
HC158 QUAD 2 CHANNEL MULTIPLEXER (INV.) HC157 QUAD 2 CHANNEL MULTIPLEXER
STMicroelectronics
M74HC157 Datasheet PDF : 11 Pages
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M54/M74HC157 M54/M74HC158
CHIP CARRIER
HC157
HC158
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
(for HC157)
PIN No
1
2, 5, 11, 14
3, 6, 10, 13
4, 7, 9, 12
15
8
16
SYMBOL
SELECT
1A to 4A
1B to 4B
1Y to 4Y
STROBE
GND
V
CC
NAME AND FUNCTION
Common Data Select
Input
Data Inputs From
Source A
Data Inputs From
Source B
Multiplexer Output
Strobe Input
Ground (0V)
Positive Supply Voltage
PIN DESCRIPTION
(for HC158)
PIN No
1
2, 5, 11, 14
3, 6, 10, 13
4, 7, 9, 12
15
8
16
SYMBOL
SELECT
1A to 4A
1B to 4B
1Y to 4Y
STROBE
GND
V
CC
NAME AND FUNCTION
Common Data Select
Input
Data Inputs From
Source A
Data Inputs From
Source B
Multiplexer Output
Strobe Input
Ground (0V)
Positive Supply Voltage
2/11
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