IN74AC139 - Dual 2-4 Decoder/Demultiplexer
TECHNICAL DATA Dual 1-of-4 Decoder/Demultiplexer High-Speed Silicon-Gate CMOS IN74AC139 The 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 functio
