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, signal routing, and digital control applications.

The IC can operate as two independent 2-to-4 decoders or be cascaded to function as a 3-to-8 line decoder. Each decoder section features four active LOW outputs and dedicated enable/data inputs, making the 74LS155 suitable for memory addressing, chip selection, peripheral control, and embedded system designs.

Key Features -

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

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

• Four active LOW outputs for each decoder section

• Individual data and strobe 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 support - Yes (3-to-8 Line Decoder)

• 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

• Chip select generation

• Data demultiplexing

• Peripheral control circuits

• Embedded systems

• Microprocessor systems

• Industrial automation

• Digital logic applications