54AC157 Datasheet, PDF (1/8 Pages) National Semiconductor (TI) – 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 I_CC and I_OZ reduced by 50%
n Outputs source/sink 24 mA
n ’ACT157 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
— ’AC157: 5962-89539
— ’ACT157: 5962-89688
Logic Symbols
IEEE/IEC
DS100272-1
Pin Names
I_0a– I_0d
I_1a– I_1d
E
S
Z_a– Z_d
Connection Diagrams
Pin Assignment
for DIP and Flatpak
Description
Source 0 Data Inputs
Source 1 Data Inputs
Enable Input
Select Input
Outputs
DS100272-2
Pin Assignment
for LCC
DS100272-3
FACT™ is a trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100272
DS100272-4
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