SL74HC138 - 1-of-8 Decoder/Demultiplexer

System Logic Semiconductor

Datasheet Details

SL74HC138 1-of-8 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS The SL74HC138 is identical in pinout to the LS/ALS138.

The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs.

The SL74HC138 decodes a three-bit Address to one-of-eight activelow outputs.

three Chip Select inputs, two activelow 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.
Outputs Directly Interface to CMOS, NMOS, and TTL.
Operating Voltage Range: 2.0 to 6.0 V.
Low Input Current: 1.0 µA.

Part Number	Description
SL74HC132	Quad 2-Input NAND Gate
SL74HC139	Dual 1-of-4 Decoder/Demultiplexer
SL74HC10	Triple 3-Input NAND Gate
SL74HC109	Dual J-K Flip-Flop with Set and Reset
SL74HC11	Triple 3-Input AND Gate
SL74HC112	Dual J-K Flip-Flop with Set and Reset
SL74HC123	Dual Retriggerable Monostable Multivibrator
SL74HC125	Quad 3-State Noninverting Buffers
SL74HC14	Hex Schmitt-Trigger Inverter
SL74HC151	8-Input Data Selector/Multiplexer