SN74ALS257AN
Manufacturers：
Texas Instruments
Description：
IC 2-TO-1 SEL/MUX TRI-ST 16-DIP
SN74ALS257ANE4
Manufacturers：
Texas Instruments
Description：
IC SELECTOR MUX QUAD 2-1 16-DIP
SN74ALS257ANSR
Manufacturers：
Texas Instruments
Description：
IC SELECTOR/MUX QUAD 2-1 16SO