74AHCT02D-Q100J

Overview

The Nexperia 74AHCT02D-Q100J is a high-speed Si-gate CMOS quad 2-input NOR gate qualified to AEC-Q100 Grade 1. 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 balanced propagation delays, Schmitt-trigger inputs, and TTL input levels. It provides ESD protection exceeding 2000 V (HBM) and 1000 V (CDM). Packaged in SO14 (SOT108-1), it accepts voltages higher than VCC and ensures compatibility with Low-power Schottky TTL standards.

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards for extended temperature ranges up to +125 °C
• Schmitt-trigger action on all inputs providing tolerance for slower rise and fall times
• TTL input level compatibility allowing direct interfacing with standard logic families
• High electrostatic discharge protection capabilities exceeding JEDEC class specifications

Applications

• Automotive electronic systems requiring robust logic gating
• Signal conditioning circuits utilizing Schmitt-trigger noise immunity
• Mixed-signal interfaces between CMOS and TTL logic domains

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature grade. Ensure the component meets the required AEC-Q100 Grade 1 qualification for automotive deployment. Cross-reference the datasheet revision date to validate that static and dynamic characteristics align with the design requirements before finalizing procurement orders.

Selection Notes

Select this component when a quad NOR function is required in automotive environments operating at 5 V. The HCT series designation indicates TTL-compatible input thresholds, distinguishing it from the AHC variant which uses CMOS levels. Verify that the SO14 package dimensions fit the PCB layout constraints and that the thermal dissipation limits are respected under maximum load conditions.

Part Context

This part belongs to the Nexperia 74AHC/AHCT02-Q100 family of quad 2-input NOR gates. It shares functional similarities with other members like the 74AHC02D-Q100J but differs in input threshold specifications. The family is designed for high-speed applications and offers multiple package options including TSSOP and DHVQFN variants for flexible board integration.

Replacement Considerations

The 74AHC02D-Q100J serves as a pin-compatible alternative within the same family, though it utilizes CMOS input levels rather than TTL levels. Designers must verify input voltage compatibility when substituting between the AHCT and AHC variants to ensure proper logic signaling.