74HCT139DB decoder/demultiplexer equivalent, dual 2-to-4 line decoder/demultiplexer.
* Input levels:
* For 74HC139: CMOS level
* For 74HCT139: TTL level
* Demultiplexing capability
* 2 independent 2-to-4 decoders
* Multifunction ca.
The 74HC139; 74HCT139 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 .
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