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74AC257 - Quad 2-Input Multiplexer

Datasheet Summary

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 74AC257SC 74AC257SJ 74AC257MTC 74AC257PC 74ACT257SC 74ACT257SJ 74ACT257MTC 74ACT257PC Package Number M16A M16D MTC16 N16E M16A M16D MTC16 N16E Package.

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Datasheet Details

Part number 74AC257
Manufacturer Fairchild Semiconductor
File Size 122.16 KB
Description Quad 2-Input Multiplexer
Datasheet download datasheet 74AC257 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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