TECHNICAL DATA
Quad 2-Input Data Selector/Multiplexer
High-Speed Silicon-Gate CMOS
The IN74AC158 is identical in pinout to the LS/ALS158,
HC/HCT158. The device inputs are compatible with standard CMOS
outputs; with pullup resistors, they are compatible with LS/ALS outputs.
This device routes 2 nibbles (A or B) to a single port (Y) as
determined by the Select input. The data is presented at the outputs in
invertered form. A high level on the Output Enable input sets all four Y
outputs to a high level.
•
Outputs Directly Interface to CMOS, NMOS, and TTL
•
Operating Voltage Range: 2.0 to 6.0 V
•
Low Input Current: 1.0
μA;
0.1μA @ 25
°C
•
High Noise Immunity Characteristic of CMOS Devices
•
Outputs Source/Sink 24 mA
IN74AC158
ORDERING INFORMATION
IN74AC158N Plastic
IN74AC158D SOIC
T
A
= -40° to 85° C for all
packages
LOGIC DIAGRAM
PIN ASSIGNMENT
FUNCTION TABLE
Inputs
PIN 16 =V
CC
PIN 8 = GND
Output
Enable
H
L
L
Select
X
L
H
Outputs
Y0-Y3
H
A0-A3
B0-B3
X=don’t care
A0-A3,B0-B3=the levels of the respective
Data-Word Inputs
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
