74HCT02PW,112

Overview

The 74HCT02PW,112 is a quad 2-input NOR gate manufactured by Nexperia under the HCT logic series. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL-compatible input levels. The device is housed in a TSSOP14 (SOT402-1) package with 14 leads. Static characteristics include an input leakage current of ±1 μA at 5.5 V and a maximum supply current of 40 μA across the -40 °C to +125 °C temperature range. Dynamic performance specifies a propagation delay of up to 29 ns at 4.5 V with a 50 pF load.

Feature Summary

• Provides four independent 2-input NOR logic functions within a single integrated circuit.
• Features CMOS low power dissipation combined with high noise immunity for reliable operation.
• Includes input clamp diodes to allow interfacing with voltages exceeding VCC using current limiting resistors.
• Offers robust ESD protection exceeding 2000 V via Human Body Model and 1000 V via Charged Device Model standards.

Applications

• General-purpose digital logic circuits requiring NOR functionality
• Signal processing interfaces utilizing TTL-level inputs
• Industrial control systems operating within specified temperature ranges

Procurement Notes

Verify the specific ordering suffix PW corresponds to the TSSOP14 package configuration required for your design. Confirm that the manufacturer designation aligns with current corporate structures, as Nexperia products may carry NXP branding on legacy documentation. Ensure compliance with RoHS directives and check for any active obsolescence notices or lifecycle status updates directly from the supplier before finalizing procurement plans.

Selection Notes

Select this component when TTL-compatible inputs are necessary alongside CMOS performance benefits. The HCT series ensures compatibility with standard TTL logic families while maintaining lower power consumption. Verify that the TSSOP14 package dimensions fit the available PCB footprint and that the thermal dissipation capabilities meet the application's power requirements under maximum operating conditions.

Part Context

This part belongs to the 74HC/HCT logic family, which combines the high noise immunity and low power of CMOS technology with the speed and drive capability of TTL logic. The HCT variant specifically bridges the gap between older TTL systems and modern CMOS designs, allowing for direct interfacing without level shifting components in many 5 V applications.

Replacement Considerations

Direct functional equivalents include other manufacturers' 74HCT02 devices in TSSOP14 packages. Cross-reference pinouts and electrical specifications carefully, particularly regarding input voltage thresholds and output drive currents, to ensure compatibility with existing circuit designs.