74HCT14D-Q100,118

Overview

The Nexperia 74HCT14D-Q100,118 is a hex inverting Schmitt trigger compliant with AEC-Q100 Grade 1 standards for automotive use. It operates within a supply voltage range of 4.5 V to 5.5 V and supports ambient temperatures from -40 °C to +125 °C. The device features TTL-compatible input levels, clamp diodes on inputs, and high noise immunity. Propagation delay at 4.5 V is typically 20 ns with a maximum of 34 ns under standard test conditions.

Feature Summary

• Automotive qualification according to AEC-Q100 Grade 1
• Schmitt-trigger inputs convert slowly changing signals into sharply defined outputs
• TTL logic level interfacing capability via reduced input thresholds
• High noise immunity and CMOS low power dissipation

Applications

• Wave and pulse shapers
• Astable multivibrators
• Monostable multivibrators

Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature grade. Confirm that the component meets the intended automotive reliability requirements. Check for any recent product change notices regarding pinout or electrical characteristics before finalizing procurement specifications.

Selection Notes

Select this component when TTL-level compatibility is required alongside Schmitt-trigger functionality in automotive environments. Ensure the operating voltage remains within the specified 4.5 V to 5.5 V range. Consider the SO14 package dimensions if space constraints exist relative to TSSOP or DHVQFN alternatives.

Part Context

This part belongs to the 74HCT14-Q100 family of hex inverters designed for robust signal conditioning. It shares functional similarities with other 74-series logic but is specifically optimized for automotive applications requiring high reliability and wide temperature operation ranges.

Replacement Considerations

Direct substitutes include the 74HC14D-Q100 variant, which offers HC logic levels instead of HCT. Other compatible options may include equivalent hex Schmitt triggers from different manufacturers provided they meet AEC-Q100 Grade 1 specifications and maintain identical pinouts.