7.3 Device Functional Modes

SELECT INPUTS(1)

DATA INPUTS

ENABLE

OUTPUT

C

B

A

D0

D1

D2

D3

D4

D5

D6

D7

G

W

Y

X

X

X

X

X

X

X

X

X

X

X

H

H

L

L

L

L

L

X

X

X

X

X

X

X

L

H

L

L

L

L

H

X

X

X

X

X

X

X

L

L

H

L

L

H

X

L

X

X

X

X

X

X

L

H

L

L

L

H

X

H

X

X

X

X

X

X

L

L

H

L

H

L

X

X

L

X

X

X

X

X

L

H

L

L

H

L

X

X

H

X

X

X

X

X

L

L

H

L

H

H

X

X

X

L

X

X

X

X

L

H

L

L

H

H

X

X

X

H

X

X

X

X

L

L

H

H

L

L

X

X

X

X

L

X

X

X

L

H

L

H

L

L

X

X

X

X

H

X

X

X

L

L

H

H

L

H

X

X

X

X

X

L

X

X

L

H

L

H

L

H

X

X

X

X

X

H

X

X

L

L

H

H

H

L

X

X

X

X

X

X

L

X

L

H

L

H

H

L

X

X

X

X

X

X

H

X

L

L

H

H

H

H

X

X

X

X

X

X

X

L

L

H

L

H

H

H

X

X

X

X

X

X

X

H

L

L

H

(1)

H = High Voltage Level, L = Low Voltage Level, X = Don’t Care

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CD54HC151, CD74HC151, CD54HCT151, CD74HCT151

SCHS150D – SEPTEMBER 1998 – REVISED NOVEMBER 2021

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