MC74ACT257 Datasheet PDF - ON Semiconductor QUAD 2-INPUT MULTIPLEXER Specs

MC74ACT257 - QUAD 2-INPUT MULTIPLEXER

Datasheet Summary

Description

The MC74AC257/74ACT257 is a quad 2 input multiplexer with 3

state outputs.

It selects four bits of data from two sources under control of a Common Data Select input.

When the Select input is LOW, the I0x inputs are selected and when Select is HIGH, the I1x inputs are selected.

Datasheet Details

Part number	MC74ACT257
Manufacturer	ON Semiconductor
File Size	130.63 KB
Description	QUAD 2-INPUT MULTIPLEXER
Datasheet	MC74ACT257 Datasheet
Additional preview pages of the MC74ACT257 datasheet.

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Full PDF Text Transcription

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Quad 2-Input Multiplexer with 3-State Outputs MC74AC257, MC74ACT257 The MC74AC257/74ACT257 is a quad 2−input multiplexer with 3−state outputs. Four bits of data from two sources can be selected using a Common Data Select input. The four outputs present the selected data in true (noninverted) form. The outputs may be switched to a high impedance state by placing a logic HIGH on the common Output Enable (OE) input, allowing the outputs to interface directly with bus−oriented systems. • Multiplexer Expansion by Tying Outputs Together • Noninverting 3−State Outputs • Outputs Source/Sink 24 mA • ′ACT257 Has TTL Compatible Inputs • These are Pb−Free Devices VCC OE I0c I1c Zc I0d I1d Zd 16 15 14 13 12 11 10 9 DATA SHEET www.onsemi.

Published: Apr 15, 2006 |