74AC139SC

芯片, 74AC, SMD

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 input 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

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ICC reduced by 50%

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Multifunction capability

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Two completely independent 1-of-4 decoders

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Active LOW mutually exclusive outputs

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Outputs source/sink 24 mA

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ACT139 has TTL-compatible inputs