SN74HC138QPWRG4Q1

Overview

The SN74HC138QPWRG4Q1 is a single 3-to-8 line decoder/demultiplexer from Texas Instruments, designed for automotive applications. It operates within a supply voltage range of 2V to 6V and features a maximum propagation delay of 45ns at 6V with a 50pF load. The device supports a clock frequency of up to 60MHz and includes three enable inputs for flexible control. It is housed in a 16-TSSOP package and functions across an extended temperature range of -40°C to 125°C.

Feature Summary

• Automotive-grade qualification ensuring reliability in vehicle environments
• Three independent enable inputs for precise logic control
• High-speed decoding capabilities with low propagation delay

Applications

• Automotive electronic control units
• Address decoding in automotive memory systems
• Signal routing in vehicle communication networks

Procurement Notes

Verify the complete part number including the Q1 suffix to confirm AEC-Q100 automotive qualification status. Ensure the G4 suffix indicates lead-free and RoHS compliance as per current manufacturing standards. Cross-reference the specific tape and reel packaging requirements with your assembly equipment specifications before ordering.

Selection Notes

Select this component when automotive reliability and wide operating voltage are required. It serves as a direct replacement for standard SN74HC138 devices in non-critical automotive roles where AEC-Q100 certification is mandated. Consider the TSSOP package dimensions for PCB layout constraints compared to SOIC alternatives.

Part Context

This part belongs to the SN74HC series of high-speed CMOS logic devices. The Q1 designation specifically denotes its qualification for automotive applications according to AEC-Q100 standards. It complements other automotive logic components like the SN74HC74QPWRG4Q1 flip-flop for comprehensive system design.

Replacement Considerations

The SN74HC138PWR is a non-automotive equivalent. Verify if AEC-Q100 qualification is strictly required for the application before substituting.