MOTOROLA SEMICONDUCTOR TECHNICAL DATA Dual 1-of-4 Decoder/ Demultiplexer High Performance Silicon Gate CMOS The MC54/74HC139A is identical in pinout to the LS139.
The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL 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.
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