74HC02D

Overview

The 74HC02D is a quad 2-input NOR gate integrated circuit manufactured by Toshiba Semiconductor and Storage. It belongs to the 74HC series of CMOS logic devices, housed in a 14-SOIC surface-mount package. The component operates within a supply voltage range of 2V to 6V. Key electrical parameters include a maximum propagation delay of 16ns at 6V with a 50pF load, output currents of 5.2mA for both high and low states, and a maximum static current of 1µA. It supports a wide operating temperature range from -40°C to 85°C.

Feature Summary

• Contains four independent 2-input NOR logic gates within a single package
• Utilizes advanced CMOS technology for low power consumption
• Features robust output drive capability suitable for interfacing with various logic families

Applications

• Digital signal processing circuits requiring logical NOR operations
• General-purpose logic control systems
• Embedded system interface design

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific part number matches the required 14-SOIC package and voltage specifications. Check for RoHS compliance status if environmental regulations apply to your assembly process. Ensure storage conditions meet moisture sensitivity level requirements to prevent damage before soldering.

Selection Notes

Select this component when a quad NOR gate configuration is required in a compact surface-mount form factor. Consider the 74HC series compatibility with standard 5V and 3.3V logic levels. Evaluate the 16ns propagation delay against your system's timing constraints. Verify that the 14-SOIC footprint aligns with your printed circuit board layout guidelines.

Part Context

This device is part of the broader 74HC family of high-speed CMOS logic ICs produced by Toshiba. The 74HC02 specifically implements the NOR function, complementing other gates like NAND (74HC00) and OR (74HC32). These components are widely used in digital electronics for basic Boolean logic operations. The 'D' suffix typically denotes the SOIC package type.

Replacement Considerations

Public confirmed substitute part numbers include TC74HC02AFELF from Toshiba Semiconductor and Storage, and MC74HC02ADR2G from onsemi. Verify pinout compatibility and electrical parameter equivalence before substitution.