HD74AC157 Datasheet, PDF (3/9 Pages) Hitachi Semiconductor – Quad 2-Input Multiplexer

HD74AC157
Truth Table
Inputs
Output
E
S
I₀
I₁
Z
H
X
X
X
L
L
H
X
L
L
L
H
X
H
H
L
L
L
X
L
L
L
H
X
H
H : High Voltage Level
L : Low Voltage Level
X : Immaterial
Logic Diagram
I0a
I1a
I0b
I1b
I0c
I1c
I0d
I1d E
S
Za
Zb
Zc
Zd
Please note that this diagram is provided only for the understanding of logic operations and should not be
used to estimate propagation delays.
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