Dual 1-of-4 Decoder/DemultiplexerThe IN74AC139 is identical in pinout to the LS/ALS139,
HC/HCT139. The device inputs are compatible with standard CMOS
outputs; with pullup resistors, they are compatible with LS/ALS
outputs.
This device consists of two independent 1-of-4 decoders, each of
which decodes a two-bit Address to one-of-four active-low outputs.
Active-low Selects are provided to facilitate the demultiplexing and
cascading functions. The demultiplexing function is accomplished by
using the Address inputs to select the desired device output, and
utilizing the Select as a data input. By Integral Corp.
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IN74AC139 Pb-Free | IN74AC139 Cross Reference | IN74AC139 Schematic | IN74AC139 Distributor |
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