SN74AHC139PW

Signal Switches, Multiplexers, Decoders Overview

The SN74AHC139PW is a dual 2-to-4-line decoder/demultiplexer from Texas Instruments, belonging to the AHC logic series. It features two independent decoders, each with two address inputs and four active-low outputs. The device operates within a supply voltage range of 2 V to 5.5 V and supports surface-mount installation in a TSSOP-16 package. It functions across an industrial temperature range of -40°C to +85°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Contains two independent 2-to-4-line decoders or demultiplexers
• Outputs are active-low for direct interfacing with control circuits
• Compatible with standard CMOS logic families via AHC technology

Signal Switches, Multiplexers, Decoders Applications

• Address decoding for memory and I/O port selection
• Demultiplexing data streams in digital communication systems
• Control signal distribution in embedded microcontroller designs

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the exact suffix against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Ensure the component meets RoHS compliance requirements for your specific manufacturing process. Cross-reference the ordering prefix with official Texas Instruments documentation to validate availability and production status before finalizing procurement plans.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when designing systems requiring multiple independent decoding channels within a single package. The AHC series offers improved speed compared to legacy HC devices while maintaining CMOS power efficiency. Verify that the 2 V to 5.5 V operating range aligns with the system's power supply rails and that the TSSOP-16 footprint fits the PCB layout constraints.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SN74AHC139 family of dual decoders. It shares functional similarities with other members like the SN74AHCT139 but differs in input voltage thresholds due to the AHC series specifications. The PW suffix indicates a plastic small-outline package variant designed for automated surface-mount assembly processes.