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PDF ( 数据手册 , 数据表 ) 54ACT258

零件编号 54ACT258
描述 Quad 2-Input Multiplexer
制造商 National Semiconductor
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54ACT258 数据手册, 描述, 功能
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August 1998
54AC258 54ACT258
Quad 2-Input Multiplexer with TRI-STATE® Outputs
General Description
The ’AC/’ACT258 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 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.
n Multiplexer expansion by tying outputs together
n Inverting TRI-STATE outputs
n Outputs source/sink 24 mA
n ’ACT258 has TTL-compatible inputs
n Standard Military Drawing (SMD)
— ’ACT258: 5962-88704
— ’AC258: 5962-91604
Features
n ICC and IOZ reduced by 50%
Logic Symbols
IEEE/IEC
DS100287-1
Pin Names
S
OE
I0a– I0d
I1a– I1d
Za– Zd
Description
Common Data Select Input
TRI-STATE Output Enable Input
Data Inputs from Source 0
Data Inputs from Source 1
TRI-STATE Inverting Data Outputs
DS100287-2
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
FACT® is a registered trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100287
www.national.com







54ACT258 pdf, 数据表
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Ceramic Flatpak (F)
NS Package Number W16A
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DE-
VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI-
CONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or sys- 2. A critical component in any component of a life support
tems which, (a) are intended for surgical implant into
device or system whose failure to perform can be rea-
the body, or (b) support or sustain life, and whose fail-
sonably expected to cause the failure of the life support
ure to perform when properly used in accordance
device or system, or to affect its safety or effectiveness.
with instructions for use provided in the labeling, can
be reasonably expected to result in a significant injury
to the user.
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Tel: 1-800-272-9959
Fax: 1-800-737-7018
www.national.com
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Fax: 65-2504466
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Tel: 81-3-5620-6175
Fax: 81-3-5620-6179
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.














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