54AC158 • 54ACT158
Quad 2-Input Multiplexer
General Description
The ’AC/’ACT158 is a high-speed quad 2-input multiplexer. It
selects four bits of data from two sources using the common
Select and Enable inputs. The four buffered outputs present
the selected data in the inverted form. The ’AC/’ACT158 can
also be used as a function generator.
Features
n I
CC
reduced by 50%
n Outputs source/sink 24 mA
n ’ACT158 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
— ’AC158: 5962-89729
— ’ACT158: 5962-88755
Logic Symbols Connection Diagrams
Pin Names Description
I
0a
–I
0d
Source 0 Data Inputs
I
1a
–I
1d
Source 1 Data Inputs
E Enable Input
S Select Input
Z
a
–Z
d
Inverted Outputs
FACT™ is a trademark of Fairchild Semiconductor Corporation.
DS100273-1
IEE/IEC
DS100273-2
Pin Assignment
for DIP and Flatpak
DS100273-3
Pin Assignment
for LCC
DS100273-4
July 1998
54AC58
•
54ACT158
Quad
2-Input
Multiplexer
© 1998 National Semiconductor Corporation DS100273 www.national.com