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HD74HC157 Datasheet, PDF (3/10 Pages) Hitachi Semiconductor – These devices each consist of four 2-input digital multiplexers with common select and strobe inputs
HD74HC158
1A
1B
2A
2B
3A
3B
4A
4B
Select
Strobe
HD74HC157/HD74HC158
1Y
2Y
3Y
4Y
3