SN74HC139QPWRG4Q1

Overview

The SN74HC139QPWRG4Q1 is an automotive-grade dual 2-line to 4-line decoder/demultiplexer from Texas Instruments. It belongs to the HC logic family and utilizes CMOS technology. The device operates within a supply voltage range of 2 V to 6 V and supports a propagation delay of 44 ns. It features two independent circuits, each with two inputs and four outputs. The component is housed in a 16-pin TSSOP package suitable for surface mount installation. It is qualified under AEC-Q100 standards and functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Dual independent decoding or demultiplexing functionality within a single package
• Automotive qualification ensuring reliability under harsh environmental conditions
• Wide operating voltage range supporting various system power architectures

Applications

• Address decoding in automotive electronic control units
• Data routing and signal distribution in vehicle networks
• Memory address selection in embedded automotive systems

Procurement Notes

Verify the complete part number including the G4 suffix to confirm lead-free compliance and specific manufacturing lot details. Ensure the procurement channel provides valid traceability documentation required for automotive supply chains. Confirm that the delivered components match the specified TSSOP-16 package dimensions and pinout configuration before integration into production assemblies.

Selection Notes

Select this component when dual decoding channels are required in space-constrained automotive designs. The HC series offers a balance of speed and power consumption suitable for general-purpose logic applications. Consider the 2V to 6V operating range for compatibility with varying automotive power rails. The AEC-Q100 qualification makes it appropriate for systems requiring long-term reliability and thermal stability.

Part Context

This device is part of the SN74HC139 family of decoders and demultiplexers. The Q1 suffix indicates automotive grade qualification, while the G4 suffix denotes lead-free packaging. It serves as a functional equivalent to standard industrial variants but meets stricter automotive reliability standards. The dual-channel architecture allows for efficient management of multiple output lines using minimal input pins.

Replacement Considerations

SN74HC139QPWRQ1