MC74HC138AN 1-Of-8 Decoder/Demultiplexer

SKU : MC74HC138AN

The MC74HC138A is identical in pinout to the LS138. The device

inputs are compatible with standard CMOS outputs; with pullup

resistors, they are compatible with LSTTL outputs.

The HC138A decodes a three−bit Address to one−of−eight

active−low outputs. This device 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 the

other Chip Selects are held in their active states.

Manufacture No. : MC74HC138AN