M54HC153 查看數據表（PDF） - STMicroelectronics

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M54HC153

HC253 DUAL 4 CHANNEL MULTIPLEXER 3 STATE OUTPUT HC153 DUAL 4 CHANNEL MULTIPLEXER

STMicroelectronics 

TRUTH TABLE

SELECT INPUTS

B

A

C0

X

X

X

L

L

L

L

L

H

L

H

X

L

H

X

H

L

X

H

L

X

H

H

X

H

H

X

X: DON’T CARE - Z: HIGH IMPEDANCE

LOGIC DIAGRAM

HC153

DATA INPUTS

C1

C2

X

X

X

X

X

X

L

X

H

X

X

L

X

H

X

X

X

X

M54/M74HC153 M54/M74HC253

STROBE

OUTPUT Y

C3

G

HC153

HC253

X

H

L

Z

X

L

L

L

X

L

H

H

X

L

L

L

X

L

H

H

X

L

L

L

X

L

H

H

L

L

L

L

H

L

H

H

HC253

3/12

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