74AHCT02PW,118

Overview

The Nexperia 74AHCT02PW,118 is a high-speed Si-gate CMOS quad 2-input NOR gate compliant with JEDEC standard No. 7-A. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an ambient temperature range from -40 °C to +125 °C. The device features balanced propagation delays, Schmitt-trigger action on all inputs, and ESD protection exceeding 2000 V (HBM) and 1000 V (CDM). It utilizes a 14-lead TSSOP plastic thin shrink small outline package (SOT402-1) with a body width of 4.4 mm.

Feature Summary

• Provides a quad 2-input NOR logic function compatible with Low-power Schottky TTL pinouts.
• All inputs incorporate Schmitt-trigger action and accept voltages higher than the supply voltage.
• Ensures robust electrostatic discharge protection meeting ANSI/ESDA/JEDEC JS-001 class 2 and JS-002 class C3 standards.
• Delivers balanced propagation delays for consistent signal timing across channels.

Applications

• Digital logic circuits requiring quad NOR functionality
• Signal buffering in systems interfacing with LSTTL components
• Industrial control applications operating within extended temperature ranges

Procurement Notes

Verify the specific ordering suffix matches the required package type, as the 74AHC02/AHCT02 series is available in multiple configurations including SO14 and DHVQFN14. Confirm that the AHCT variant is selected for TTL-level input compatibility rather than the AHC CMOS version. Ensure design specifications align with the 4.5 V to 5.5 V recommended operating conditions and the -40 °C to +125 °C temperature range defined in the product data sheet.

Selection Notes

Select this component when TTL-compatible inputs are required alongside CMOS performance characteristics. The AHCT logic level specification ensures direct interface with standard TTL outputs without additional level shifting. Consider the TSSOP14 package dimensions if board space constraints require a thin shrink small outline form factor. Verify that the application environment remains within the specified absolute maximum ratings to prevent permanent device damage.

Part Context

This device belongs to the Nexperia 74AHC/AHCT family of high-speed silicon-gate CMOS logic devices. The family is designed to be pin-compatible with legacy Low-power Schottky TTL (LSTTL) standards while offering improved speed and lower power consumption. The 74AHCT02 specifically bridges the gap between older TTL logic levels and modern CMOS supply voltages, facilitating system upgrades and mixed-technology designs.

Replacement Considerations

The 74AHC02PW,118 serves as the CMOS-level counterpart within the same package and pinout configuration. Designers must verify input voltage thresholds when substituting between AHC and AHCT variants to ensure compatibility with existing drive sources.

FAQ

What is the input voltage compatibility for the 74AHCT02?

The 74AHCT02 accepts TTL-level input signals, distinguishing it from the 74AHC02 which requires CMOS-level inputs.

Does the device include input protection mechanisms?

Yes, all inputs feature Schmitt-trigger action and the device provides ESD protection exceeding 2000 V according to the Human Body Model standard.