54AC257L Datasheet

IC型號(hào)：
54AC257L
PDF描述：
Quad 2-Input Multiplexer with TRI-STATE Outputs
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PDF頁數(shù)：
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54AC257

鈥?/div>

54ACT257 Quad 2-Input Multiplexer with TRI-STATE Outputs

July 1998

54AC257

鈥?/div>

54ACT257

Quad 2-Input Multiplexer with TRI-STATE

廬

Outputs

General Description

The 鈥橝C/鈥橝CT257 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 HIGH on the common Output Enable (OE) in-

put, allowing the outputs to interface directly with

bus-oriented systems.

Features

and I

reduced by 50%

Multiplexer expansion by tying outputs together

Noninverting TRI-STATE outputs

Outputs source/sink 24 mA

鈥橝CT257 has TTL-compatible inputs

Standard Military Drawing (SMD)

鈥?鈥橝C257: 5962-88703

鈥?鈥橝CT257: 5962-89689

Logic Symbols

IEEE/IEC

DS100286-1

DS100286-2

Pin Names

鈥揑

鈥揨

Description

Common Data Select Input

TRI-STATE Output Enable Input

Data Inputs from Source 0

Data Inputs from Source 1

TRI-STATE Multiplexer Outputs

TRI-STATE

廬

is a registered trademark of National Semiconductor Corporation.

FACT

鈩?/div>

is a trademark of Fairchild Semiconductor Corporation.

漏 1998 National Semiconductor Corporation

DS100286

www.national.com

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54AC257L Datasheet

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