74AHC157; 74AHCT157
Quad 2-input multiplexer
Rev.
3 — 10 September 2020
Product data sheet
1.
General description
The 74AHC/AHCT157 are high-speed Si-gate CMOS devices and are pin compatible with Low Power
Schottky TTL (LSTTL).
They are specified in compliance with JEDEC standard no.
7A.
The 74AHC/AHCT157 are quad 2-input multiplexer which select 4 bits of data from two sources under the control of a common data select input (S).
The enable input (E) is active LOW.
When E is HIGH, all of the outputs (1Y to 4Y) are forced LOW regardless of all other input conditions.
Moving the data from two groups of registers to four common output buses is a common use of the 74AHC/AHCT157.
The state of ...