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54AC139D 数据表(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 54AC139D
功能描述  Dual 1-of-4 Decoder/Demultiplexer
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

54AC139D 数据表(HTML) 1 Page - National Semiconductor (TI)

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54AC139
54ACT139
Dual 1-of-4 Decoder/Demultiplexer
General Description
The ’AC/’ACT139 is a high-speed, dual 1-of-4 decoder/
demultiplexer. The device has two independent decoders,
each
accepting
two
inputs
and
providing
four
mutually-exclusive active-LOW outputs. Each decoder has
an active-LOW Enable input which can be used as a data in-
put for a 4-output demultiplexer. Each half of the ’AC/
’ACT139 can be used as a function generator providing all
four minterms of two variables.
Features
n ICC reduced by 50%
n Multifunction capability
n Two completely independent 1-of-4 decoders
n Active LOW mutually exclusive outputs
n Outputs source/sink 24 mA
n ’ACT139 has TTL-compatible inputs
n Standard Military Drawing (SMD)
— ’AC139: 5962-87623
— ’ACT139: 5962-87553
Logic Symbols
Pin Names
Description
A
0,A1
Address Inputs
E
Enable Inputs
O
0–O3
Outputs
FACT® is a registered trademark of Fairchild Semiconductor Corporation.
DS100269-8
DS100269-1
IEEE/IEC
DS100269-2
August 1998
© 1998 National Semiconductor Corporation
DS100269
www.national.com


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