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54AC257 Datasheet - National Semiconductor

54AC257_NationalSemiconductor.pdf

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Datasheet Details

Part number:

54AC257

Manufacturer:

National Semiconductor

File Size:

141.14 KB

Description:

Quad 2-input multiplexer.

54AC257, Quad 2-Input Multiplexer

The ’AC/’ACT257 is a quad 2-input multiplexer with TRI-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 H

54AC257 Features

* n n n n n n ICC and IOZ reduced by 50% Multiplexer expansion by tying outputs together Noninverting TRI-STATE outputs Outputs source/sink 24 mA ’ACT257 has TTL-compatible inputs Standard Military Drawing (SMD)

* ’AC257: 5962-88703

* ’ACT257: 5962-89689 Logic Symbols IEEE/IEC DS1002

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