SN74AHCT139DR

Signal Switches, Multiplexers, Decoders Overview

The SN74AHCT139DR is a dual 2-to-4-line decoder/demultiplexer from the Texas Instruments AHCT logic family. It operates on a single power supply ranging from 4.5 V to 5.5 V and features low dynamic power consumption. The device utilizes TSSOP-16 or SOIC-16 surface-mount packages, ensuring compatibility with standard CMOS logic levels while maintaining high-speed performance characteristics suitable for complex digital systems.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual independent decoding circuits within a single package
• Active-low output selection for precise signal routing
• CMOS-compatible input thresholds for system integration

Signal Switches, Multiplexers, Decoders Applications

• Address decoding in microprocessor-based memory systems
• Data distribution in industrial control networks
• Signal path selection in communication equipment

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix (e.g., DR vs. DRE4) against the official datasheet to confirm RoHS compliance status and manufacturing origin. Ensure the ordering part number matches the required package style and tape-and-reel specifications for automated assembly processes.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when dual independent decoding is required within a compact footprint. The AHCT series provides TTL-compatible inputs with CMOS outputs, facilitating interface between legacy logic families and modern low-power designs without requiring additional level-shifting circuitry.

Signal Switches, Multiplexers, Decoders Part Context

This device belongs to the SN74AHCT139 series, designed for high-density applications requiring multiple decoding functions. It serves as a core logic element in address decoding schemes, enabling efficient management of memory maps and peripheral selection in embedded architectures.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SN74AHCT139DRE4: Verified equivalent offering identical electrical characteristics and pinout configuration.