tm

April 2007

©1988 Fairchild Semiconductor Corporation

www.fairchildsemi.com

74ACT258 Rev. 1.4

74ACT258

Quad 2-Input Multiplexer with 3-STATE Outputs

Features

General Description

The ACT258 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 out-

puts present the selected data in the complement

(inverted) form. The outputs may be switched to a high

impedance state with a HIGH on the common Output

Enable (OE) input, allowing the outputs to interface

directly with bus-oriented systems.

Ordering Information

Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number.

Connection Diagram

Pin Description

Order

Number

Package

Number

Package Description

74ACT258SC

M16A

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012,

0.150” Narrow Body

74ACT258SJ

M16D

16-Lead Small Outline Package (SOP), EIAJ TYPE 11, 5.3mm Wide

74ACT258MTC

MTC16

16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,

4.4mm Wide

Pin Names

Description

S

Common Data Select Input

OE

3-STATE Output Enable Input

Data Inputs from Source 0

Data Inputs from Source 1

3-STATE Inverting Data Outputs

FACT™ is a trademark of Fairchild Semiconductor Corporation.