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MC74AC139 Datasheet

Part NameMC74AC139(2006) ON-Semiconductor
ON Semiconductor ON-Semiconductor
DescriptionDual 1-of-4 Decoder/Demultiplexer
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The MC74AC139/74ACT139 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 MC74AC139/74ACT139 can be used as a function generator providing four minterms of two variables.

• Multifunctional Capability
• Two Completely Independent 1–of–4 Decoders
• Active LOW Mutually Exclusive Outputs
• Outputs Source/Sink 24 mA
• ′ACT139 Has TTL Compatible Inputs

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