The F139 is a high speed dual 1-of-4 decoder/demultiplexer fabricated with the Schottky barrier diode process.
The device has two independent decoders, each of which accepts two binary weighted inputs (AO, A1) and provide four mutually exclusive active LOW outputs (O0-O3).
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MC54/74F139 DUAL 1-OF-4 DECODER The MC54/74F139 is a high speed Dual 1-of-4 Decoder/Demultiplexer. The device has two independent decoders, each accepting two inputs and ...
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he 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 F139 can be used as a function generator providing all four miniterms of two variables.
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MC74F139 Datasheet
