HLF 74LS155 Dual 2-to-4 Line Decoder/Demultiplexer – DIP16 | High-Speed TTL Logic | 4.75V–5.25V, 0°C to +70°C | Through-Hole Package

The HLF 74LS155 is a high-speed, dual 2-to-4 line decoder/demultiplexer IC designed using Low-Power Schottky TTL (LS) technology. Each section decodes two binary inputs into one of four mutually exclusive active-low outputs, making it ideal for address decoding, data routing, and logic expansion in digital systems.

This versatile IC features independent enable inputs for each decoder, allowing flexible control and cascading options for larger systems. Operating from 4.75V to 5.25V and within a temperature range of 0°C to +70°C, the DIP16 through-hole package provides reliable TTL-level performance, low power consumption, and fast switching speeds suitable for industrial and embedded logic applications.

Key Features:

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

• Technology: Low-Power Schottky TTL (LS Series)

• Operating Voltage: 4.75V – 5.25V

• Operating Temperature: 0°C to +70°C

• Package Type: DIP16 (Dual In-Line Package)

• Mounting Type: Through-Hole

• Independent Enable Inputs for Each Decoder

• Active-Low Outputs for Logic Compatibility

• High-Speed, Low-Power TTL Operation

• Excellent Noise Immunity and Reliable Switching

• Supports Cascading for Expanded Logic Control

Applications:

• Memory Address Decoding

• Data Selection and Routing

• Logic Control and Signal Demultiplexing

• Microprocessor and Peripheral Interface Circuits

• Industrial Automation and Embedded Systems

• Educational and Prototype Digital Logic Projects