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IN74ACT257

Part Number	IN74ACT257
Manufacturer	IK Semiconductor
Description	Quad 2-1 Data Selector/Multiplexer
Published	Dec 8, 2005
Detailed Description	TECHNICAL DATA IN74ACT257 Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS The...
Datasheet	IN74ACT257 PDF File

Overview

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.
A high level on the Output Enable pin switches the outputs into the highimpedance state.
• TTL/NMOS Compatible Input Levels • Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Ra...

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