74AHCT02D,112

Overview

The Nexperia 74AHCT02D,112 is a high-speed Si-gate CMOS quad 2-input NOR gate compliant with JEDEC standard No. 7-A and pin-compatible with LSTTL. It operates within a supply voltage range of 4.5 V to 5.5 V. The device features balanced propagation delays, Schmitt-trigger action on all inputs, and TTL input levels. ESD protection exceeds 2000 V (HBM) and 1000 V (CDM). It is housed in an SO14 plastic small outline package (SOT108-1) and specified for operation from -40 °C to +125 °C.

Feature Summary

• Provides a quad 2-input NOR logic function with balanced propagation delays.
• All inputs feature Schmitt-trigger action and accept voltages higher than VCC.
• TTL input switching levels ensure compatibility with Low-power Schottky TTL (LSTTL).
• Robust ESD protection exceeding 2000 V per ANSI/ESDA/JEDEC JS-001 class 2.

Applications

• Digital signal processing circuits requiring NOR logic functions.
• Interface designs bridging CMOS and LSTTL logic families.
• High-speed data transmission systems utilizing Schmitt-trigger inputs.

Procurement Notes

Verify the specific ordering suffix '112' corresponds to the SO14 (SOT108-1) package variant when sourcing. Confirm that the application environment remains within the recommended operating conditions of 4.5 V to 5.5 V supply voltage. Ensure thermal management accounts for total power dissipation limits at ambient temperatures up to 125 °C. Cross-reference the latest product status to confirm production availability.

Selection Notes

Select this component when TTL-level inputs are required alongside CMOS performance characteristics. The AHCT series is appropriate for systems interfacing directly with legacy LSTTL outputs. Consider the SO14 package dimensions if board space constraints align with the SOT108-1 footprint. Verify that the 4.5 V minimum supply voltage meets the system's power rail specifications.

Part Context

This part belongs to the 74AHC/AHCT family of high-speed CMOS logic devices manufactured by Nexperia. The 'AHCT' designation specifically indicates TTL-compatible input thresholds while maintaining CMOS output drive capabilities. The '02' functional code identifies the quad 2-input NOR configuration within this standardized logic family.

Replacement Considerations

Direct substitutes include other manufacturers' 74AHCT02 variants in SO14 packages. Verify pinout compatibility and electrical parameters against the original datasheet before substitution.