SN74HC138PWRG4 3-to-8 Line Decoder/Demultiplexer | High-Speed CMOS | TSSOP-16

Description

The SN74HC138PWRG4 is a high-speed CMOS 3-to-8 line decoder/demultiplexer. It accepts three binary weighted inputs (A0, A1, A2) and, when enabled, provides eight mutually exclusive active-LOW outputs. This device is widely used in high-performance memory decoding or data routing applications where a small number of inputs need to control a larger number of output lines.

The device features three enable inputs: two active-LOW (G2A-bar and G2B-bar) and one active-HIGH (G1). All three enable inputs must be in their active state for the outputs to follow the binary code; otherwise, all outputs remain HIGH (inactive). This flexible enabling logic makes it very easy to cascade multiple decoders to expand address decoding capabilities.

Note: Product images are shown for reference only. The actual product may vary in appearance, manufacturer marking, or logo depending on stock availability.

Features

• 3-to-8 line decoding capability
• Three enable inputs for easy cascading and expansion
• High-speed CMOS (HC) technology
• Wide operating voltage range (2V to 6V)
• Active-LOW outputs for efficient interfacing
• Low power consumption
• Compact TSSOP-16 SMD package

Benefits

• Reduces component count in complex address decoding tasks
• Flexible gating logic allows for simple memory mapping
• High noise immunity ensures reliable operation in digital systems
• Compatible with a wide range of standard logic families

Applications

• Memory Address Decoding
• Data Routing and Demultiplexing
• Peripheral Chip Select Generation
• Digital Control Signal Distribution
• Control Systems and Logic Arrays

Package Includes

• 1 x SN74HC138PWRG4 3-to-8 Line Decoder/Demultiplexer IC (TSSOP-16 SMD)

Specifications