SN74LVC139APWRG4

Overview

The SN74LVC139APWRG4 is a dual 2-line to 4-line decoder/demultiplexer from the Texas Instruments LVC logic family. It operates within a supply voltage range of 1.65 V to 3.6 V and supports an operating temperature range of -40°C to +85°C. The device features active-low enable inputs that function as data lines in demultiplexing applications, with fully buffered inputs compatible with 3.3-V or 5-V driving circuits. It provides a maximum propagation delay of 6.2 ns and includes ESD protection exceeding JESD 22 standards.

Feature Summary

• Dual independent 2-to-4 decoding and demultiplexing circuits
• Fully buffered inputs for mixed-voltage system translation
• Active-low enable pins usable as data control lines

Applications

• Address decoding in embedded systems
• Data routing and demultiplexing
• Memory chip select generation

Procurement Notes

Verify the G4 suffix indicates lead-free and RoHS compliance per the manufacturer's ordering information. Confirm the PW package designation matches the required TSSOP footprint. Ensure the specified temperature grade aligns with the application environment requirements before finalizing procurement.

Selection Notes

Select this component when low-voltage operation between 1.65 V and 3.6 V is required. The LVC series offers high-speed performance suitable for modern digital interfaces. Verify input compatibility if interfacing with legacy 5-V logic sources due to the buffered input design.

Part Context

This part belongs to the SN74LVC139A family of decoders and demultiplexers. It is manufactured by Texas Instruments and utilizes a 16-pin TSSOP (PW) package. The 'G4' suffix denotes environmental compliance, specifically lead-free construction and adherence to RoHS directives.

Replacement Considerations

SN74LVC139APW is available in tube packaging instead of tape and reel.