54AC157
•
54ACT157 Quad 2-Input Multiplexer
July 1998
54AC157
•
54ACT157
Quad 2-Input Multiplexer
General Description
The ’AC/’ACT157 is a high-speed quad 2-input multiplexer.
Four bits of data from two sources can be selected using the
common Select and Enable inputs. The four outputs present
the selected data in the true (noninverted) form. The ’AC/
’ACT157 can also be used as a function generator.
Features
n
n
n
n
I
CC
and I
OZ
reduced by 50%
Outputs source/sink 24 mA
’ACT157 has TTL-compatible inputs
Standard Microcircuit Drawing (SMD)
— ’AC157: 5962-89539
— ’ACT157: 5962-89688
Logic Symbols
IEEE/IEC
DS100272-1
DS100272-2
Pin Names
I
0a
–I
0d
I
1a
–I
1d
E
S
Z
a
–Z
d
Description
Source 0 Data Inputs
Source 1 Data Inputs
Enable Input
Select Input
Outputs
Connection Diagrams
Pin Assignment
for DIP and Flatpak
Pin Assignment
for LCC
DS100272-3
DS100272-4
FACT
™
is a trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation
DS100272
www.national.com
NSC [ NATIONAL SEMICONDUCTOR ]
