IN74ACT257 Datasheet (IK Semiconductor) - Quad 2-1 Data Selector/Multiplexer

IN74ACT257, Quad 2-1 Data Selector/Multiplexer

TECHNICAL DATA IN74ACT257 Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS The IN74ACT257 is identical in pinout to the LS/ALS257, HC/HCT257.

The IN74ACT257 may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs.

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