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74HC257

Schematic symbol

Quad 2-input multiplexer with tri-state outputs: Like the 74HC157, the select input S picks nI0 or nI1 for each output, but when OE is high all four outputs are disconnected so they can share a bus. Same pinout as the 74HC157.

integrated circuit IC chip 7400 series logic multiplexer data selector tri-state 74HCT257 74LS257 74257

Details

Reference Character
U
Default Value
74HC257
Library
Circuit Canvas Library