74LS155 Dual 2-to-4 Line Decoder/Demultiplexer IC DIP-16 TTL Logic Chip (74LS155N, 5V, Low Power Schottky)

Description -

The 74LS155 DIP is a TTL logic integrated circuit containing two independent 2-to-4 line decoders/demultiplexers in a 16-pin Dual Inline Package (DIP). It belongs to the 74LS Low Power Schottky logic family and is designed for address decoding, data distribution, and signal routing in digital systems.

The IC can operate as two separate 2-to-4 decoders or be cascaded to function as a 3-to-8 line decoder. Each section provides four active LOW outputs with dedicated enable/data inputs, making the 74LS155 ideal for memory addressing, peripheral selection, digital control, and embedded applications.

Key Features -

• Dual independent 2-to-4 line decoders/demultiplexers

• Can be cascaded as a 3-to-8 line decoder

• Four active LOW outputs per section

• Individual data and enable inputs

• Low Power Schottky technology

• TTL compatible logic levels

• High-speed switching performance

• Standard DIP-16 package

Specifications -

• Product type - TTL Logic IC

• IC Model - 74LS155

• Logic Function - Dual 2-to-4 Line Decoder/Demultiplexer

• Package type - DIP-16

• Logic family - 74LS TTL

• Operating voltage - 4.75V to 5.25V DC

• Number of decoder sections - 2

• Outputs - 4 Active LOW Outputs per Section

• Cascade capability - Supports 3-to-8 Line Decoding

• Typical propagation delay - 18ns

• High-level output current - -0.4mA

• Low-level output current - 8mA

• Input high voltage - 2.0V Minimum

• Operating temperature - 0C to 70C

Applications -

• Memory address decoding

• Data demultiplexing

• Peripheral selection

• Digital communication systems

• Embedded systems

• Industrial automation

• Microprocessor systems

• Logic control circuits