SN74HC139PWG4

Overview

The SN74HC139PWG4 is a dual 2-line to 4-line decoder/demultiplexer from the Texas Instruments HC logic family, housed in a 16-pin TSSOP package. It operates within a supply voltage range of 2 V to 6 V and supports an operating temperature range of -40°C to +85°C. The device features active-low outputs and incorporates two enable inputs to simplify cascading or data reception applications.

Feature Summary

• Designed for high-speed memory decoders and data-transmission systems
• Incorporates fully buffered inputs representing only one normalized load
• Features active-low output strobe G input for gating control

Applications

• High-performance memory decoding
• Data-routing applications
• Demultiplexing circuits

Procurement Notes

Verify the specific ordering suffix 'G4' against the manufacturer's current datasheet to confirm lead finish and RoHS compliance status. Ensure the TSSOP-16 package dimensions match the target PCB footprint requirements before finalizing procurement decisions.

Selection Notes

Select this component when low power consumption and wide operating voltage are required. The dual decoder configuration allows for efficient space utilization in designs needing multiple address decoding functions within a single integrated circuit package.

Part Context

This part belongs to the SNx4HC139 series, which includes variants such as SN74HC139PWR and SN74HC139DBR. These devices share identical logical functionality but differ in packaging options like SOIC, SSOP, and TSSOP to accommodate various surface-mount assembly needs.

Replacement Considerations

• SN74HC139PWR
• SN74HC139DBR