SN74AHCT139NSR

Signal Switches, Multiplexers, Decoders Overview

The SN74AHCT139NSR is a dual 2-line to 4-line decoder/demultiplexer from the Texas Instruments AHCT logic family. It operates on a single 5V supply with voltage levels compatible with standard CMOS and TTL devices. The device integrates two independent decoders within a single package, providing address decoding or data distribution functions. It features active-low outputs and low input currents, ensuring efficient operation in digital control systems.

Signal Switches, Multiplexers, Decoders Feature Summary

• Integrates two independent 2-to-4 line decoders for compact system design
• Compatible with standard CMOS and TTL logic families through AHCT technology
• Provides active-low decoded outputs for direct interfacing with various loads

Signal Switches, Multiplexers, Decoders Applications

• Address decoding in microprocessor-based memory systems
• Data distribution in digital communication circuits
• Control signal routing in industrial automation equipment

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'SR' against the manufacturer's official documentation to confirm tape-and-reel packaging specifications and moisture sensitivity level. Ensure the component meets RoHS compliance requirements for your target market. Cross-reference the full part number with the latest datasheet revision to confirm pinout and electrical characteristics match your design constraints.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when high-speed switching is required alongside strict compatibility with 5V CMOS and TTL interfaces. The AHCT series offers faster propagation delays compared to standard HCT variants while maintaining identical pinouts. Consider the dual-decoder configuration to minimize board space and simplify layout in complex digital logic applications requiring multiple address lines.

Signal Switches, Multiplexers, Decoders Part Context

This component belongs to the SN74AHCT series of high-speed CMOS logic devices manufactured by Texas Instruments. The series is designed to bridge the performance gap between standard CMOS and TTL technologies. It provides improved speed without sacrificing the noise immunity and power efficiency typical of CMOS logic families, making it suitable for modern digital designs.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SN74AHCT139PWRE4: Alternative reel-packaged version from Texas Instruments with identical functionality.