74LS138 3-to-8 Line Decoder/Demultiplexer IC DIP-16 TTL Logic Chip (74LS138N, 5V, Low Power Schottky)

Description -

The 74LS138 DIP is a TTL logic integrated circuit that functions as a 3-to-8 line decoder and demultiplexer in a 16-pin Dual Inline Package (DIP). It belongs to the 74LS Low Power Schottky logic family and is widely used for address decoding, memory selection, data routing, and digital control applications.

The IC features three binary select inputs, three enable inputs, and eight active LOW outputs. It decodes a 3-bit binary input into one of eight output lines, making it ideal for microprocessor systems, memory interfacing, and embedded digital circuits.

Key Features -

• 3-to-8 line decoder and demultiplexer

• Eight active LOW outputs

• Three binary select inputs

• Three enable inputs for flexible control

• Low Power Schottky technology

• TTL compatible logic levels

• High-speed switching performance

• Standard DIP-16 package

Specifications -

• Product type - TTL Logic IC

• IC Model - 74LS138

• Logic Function - 3-to-8 Line Decoder/Demultiplexer

• Package type - DIP-16

• Logic family - 74LS TTL

• Operating voltage - 4.75V to 5.25V DC

• Number of select inputs - 3

• Number of enable inputs - 3

• Number of outputs - 8 Active LOW

• Propagation delay - 21ns Typical

• Operating temperature - 0C to 70C

Applications -

• Memory address decoding

• Chip select generation

• Microprocessor systems

• Data routing circuits

• Embedded systems

• Industrial control equipment

• Digital logic circuits

• Educational electronics projects