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54AC139L View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
54AC139L Dual 1-of-4 Decoder/Demultiplexer National-Semiconductor
National ->Texas Instruments National-Semiconductor
54AC139L Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
August 1998
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.
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
n ICC reduced by 50%
Logic Symbols
Pin Names
A0, A1
O0– O3
Address Inputs
Enable Inputs
FACT® is a registered trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100269
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