74AHCT1G126QSE-7

Overview

The 74AHCT1G126QSE-7 is a single non-inverting buffer with 3-state output, designed for automotive applications. It operates within a supply voltage range of 4.5V to 5.5V and provides ±8mA output drive at 5.0V. The device features Schmitt trigger inputs for tolerance to slower rise/fall times and balanced propagation delays. It is AEC-Q100 qualified for Grade 1 ambient temperature operation from -40°C to +125°C.

Feature Summary

• Automotive compliant single non-inverting buffer with 3-state output
• Schmitt trigger action at all inputs for improved noise immunity
• AEC-Q100 qualified with high ESD protection ratings
• CMOS low-power consumption design

Applications

• Automotive applications within Grade 1 Temperature Range
• Industrial Computing/Controls/Automation
• High Reliability Networking/Communications
• Industrial/Agricultural Equipment

Procurement Notes

Verify the specific suffix 'SE' corresponds to the SOT353 package when sourcing. Confirm that the 'Q' designation indicates AEC-Q100 qualification and PPAP capability as required by your manufacturing standards. Ensure the ordering quantity matches the standard tape and reel packaging specifications provided in the manufacturer's documentation.

Selection Notes

Select this component for designs requiring a single-channel bus driver with controlled impedance states. The AHCT logic family ensures compatibility with standard CMOS interfaces while maintaining defined voltage thresholds. Consider the SOT353 package dimensions for PCB layout constraints and verify thermal resistance requirements against the junction-to-ambient characteristics specified in the datasheet.

Part Context

This part belongs to the 74AHCT1GxxQ series of single-gate logic devices manufactured by Diodes Incorporated. The Q-series specifically denotes automotive-grade components that meet strict reliability standards. It shares the same logical function as other variants but differs in package options such as SOT25 or SOT353 and includes enhanced environmental compliance features.

Replacement Considerations

The 74AHCT1G126QW5-7 serves as a direct functional substitute utilizing the SOT25 package instead of SOT353. Both parts share identical electrical characteristics and automotive qualifications. Verify pinout compatibility and physical footprint differences before substituting in existing board layouts.

FAQ

What is the input enable logic level for the 3-state output?

The output enters a high-impedance state when a LOW-level signal is applied to the Output Enable (OE) pin. The OE pin is active HIGH.

Does this device include Schmitt trigger inputs?

Yes, the 74AHCT1G126Q features Schmitt trigger action at all inputs, making the circuit tolerant for slower input rise and fall times.