74HCT02N,652

Overview

The NXP USA Inc. 74HCT02N,652 is a quad 2-input NOR gate manufactured by Nexperia under the HCT logic family. 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 TTL-compatible input levels and includes input clamp diodes for interfacing with voltages exceeding VCC. It provides high noise immunity and complies with JEDEC standards JESD8C and JESD7A. The component utilizes a 14-lead plastic small outline package (SO14) with a body width of 3.9 mm.

Feature Summary

• Provides four independent 2-input NOR logic functions in a single integrated circuit
• Features CMOS low power dissipation characteristics combined with high noise immunity
• Includes input clamp diodes allowing current limiting resistors for interfacing inputs to voltages above VCC
• Offers robust latch-up performance exceeding 100 mA per JESD 78 Class II Level B

Applications

• Digital logic circuits requiring standard NOR functionality
• Systems utilizing TTL-level compatible microprocessors and peripherals
• General-purpose signal processing applications operating at 5 V

Procurement Notes

Verify that the ordering suffix '652' corresponds to the specified SO14 package variant. Confirm the manufacturer designation aligns with Nexperia specifications as the authorized producer of this part number. Ensure the procurement documentation references the correct product data sheet revision to validate compliance with current JEDEC standards and electrical characteristics.

Selection Notes

Select this component when TTL-compatible inputs are required alongside CMOS low power consumption. The HCT series ensures direct interface compatibility with Low-power Schottky TTL (LSTTL). Consider the wide operating temperature range and ESD protection ratings for environments demanding high reliability and robustness against electrostatic discharge events.

Part Context

This component belongs to the 74HC/HCT logic family, which integrates high-speed silicon-gate CMOS technology. The HCT variant specifically bridges the gap between CMOS and bipolar TTL logic families. It maintains pin compatibility with LSTTL while offering superior power efficiency and noise margins compared to older bipolar technologies.

Replacement Considerations

Cross-reference with other manufacturers' 74HCT02 equivalents to ensure functional and pinout compatibility. Verify that alternative sources provide identical JEDEC compliance and package dimensions.