SN74AHCT139PWR

Signal Switches, Multiplexers, Decoders Overview

The SN74AHCT139PWR is a dual 2-line to 4-line decoder and demultiplexer from Texas Instruments, belonging to the AHCT logic series. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range from -40°C to +85°C. The device features two independent decoding circuits in a single 16-pin TSSOP package. It utilizes CMOS technology for efficient power consumption and signal integrity.

Signal Switches, Multiplexers, Decoders Feature Summary

• Integrates two independent 2-to-4 line decoders or demultiplexers within a single integrated circuit package.
• Compatible with standard 5-V CMOS logic inputs while accepting TTL-compatible input levels.
• Provides high noise immunity and low power dissipation characteristics typical of advanced CMOS technology.

Signal Switches, Multiplexers, Decoders Applications

• Address decoding for memory and I/O port selection in embedded systems
• Demultiplexing data streams in digital communication interfaces
• Control logic for peripheral device activation in industrial automation

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the exact part number against manufacturer documentation to ensure compatibility with specific design requirements. Confirm that the AHCT logic family aligns with the system's voltage levels and input thresholds. Check for any recent product change notifications regarding packaging or manufacturing sites to maintain supply chain consistency.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when dual independent decoding functions are required within a compact surface-mount footprint. Ensure the system operates strictly within the 4.5 V to 5.5 V supply voltage range. Consider the -40°C to +85°C operating temperature range against environmental conditions. Verify that input signals meet the specified logic level requirements for reliable switching performance.

Signal Switches, Multiplexers, Decoders Part Context

This component is part of the broader SN74AHCT139 family, which includes variants with different suffixes indicating packaging or environmental ratings. It shares functional similarities with other 74-series decoders but offers specific speed and power characteristics defined by the AHCT technology. The TSSOP-16 package provides a space-efficient solution for modern printed circuit board designs requiring multiple decoding channels.