KK74HCT138A - 1-of-8 Decoder/Demultiplexer
KK74HCT138A Features
* three Chip Select inputs, two active-low and one active-high to facilitate the demultiplexing, cascading, and chip-selecting functions. The demultiplexing function is accomplished by using the Address inputs to select the desired device output; one of the Chip Selects is used as a data input while t