74HCT139N

NXP  74HCT139N  芯片, 74HCT CMOS逻辑器件

The is a 2-to-4 dual Decoder/Demultiplexer decodes two binary weighted address inputs nA0, nA1 to four mutually exclusive outputs nY0\ to nY3\\. Each decoder features an enable input nE\\. When nE\ is high all outputs are forced high. The enable input can be used as the data input for a 1-to-4 demultiplexer application. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

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Demultiplexing capability

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Multifunction capability

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Suitable for memory decoding, data routing or code conversion

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Active low mutually exclusive outputs

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TTL Input level

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Complies with JEDEC standard No. 7A