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74ACT257 - Quad 2-Input Multiplexer

This page provides the datasheet information for the 74ACT257, a member of the 74AC257 Quad 2-Input Multiplexer family.

Description

The AC/ACT257 is a quad 2-input multiplexer with 3STATE 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.

Features

  • s ICC and IOZ reduced by 50% s Multiplexer expansion by tying outputs together s Noninverting 3-STATE outputs s Outputs source/sink 24 mA s ACT257 has TTL-compatible inputs Ordering Code: Order Number Package Number Package.

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Datasheet preview – 74ACT257

Datasheet Details

Part number 74ACT257
Manufacturer Fairchild Semiconductor
File Size 122.16 KB
Description Quad 2-Input Multiplexer
Datasheet download datasheet 74ACT257 Datasheet
Additional preview pages of the 74ACT257 datasheet.

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Full PDF Text Transcription

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74AC257 • 74ACT257 Quad 2-Input Multiplexer with 3-STATE Outputs November 1988 Revised November 1999 74AC257 • 74ACT257 Quad 2-Input Multiplexer with 3-STATE Outputs General Description The AC/ACT257 is a quad 2-input multiplexer with 3STATE 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.
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