Quad 2-input Data Selector/multiplexer With 3-state Outputs High-speed Silicon-gate Cmos

The KK74AC257 is identical in pinout to the LS/ALS257, HC/HCT257. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALS outputs. This device selects a (4-bit) nibble from either the A or B inputs as determined by the Select input. The nibble is presented at the outputs in noninverted from when the Output Enable pin is at a low level. A high level on the Output Enable pin switches the outputs into the high- impedance state. By Kodenshi Korea Corp.
KK74AC257 's PackagesKK74AC257 's pdf datasheet
KK74AC257N
KK74AC257D




KK74AC257 Pinout, Pinouts
KK74AC257 pinout,Pin out
This is one package pinout of KK74AC257,If you need more pinouts please download KK74AC257's pdf datasheet.

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