SN74HC02N

Overview

The SN74HC02N is a quad 2-input NOR gate manufactured by Texas Instruments using advanced silicon-gate CMOS technology. It operates within a supply voltage range of 2V to 6V and features low static power dissipation. The device provides four independent NOR gates, each with two inputs. It supports through-hole mounting in a 14-pin DIP package. Key electrical characteristics include a maximum propagation delay of 20ns at 6V with 50pF load and output drive currents of 5.2mA for both high and low states.

Feature Summary

• Advanced silicon-gate CMOS technology ensures low power consumption and high noise immunity.
• Provides four independent 2-input NOR logic functions within a single integrated circuit.
• Compatible with standard TTL logic levels across the specified operating voltage range.

Applications

• Digital logic circuits requiring NOR functionality
• Signal processing systems utilizing CMOS technology
• General-purpose digital control applications

Procurement Notes

Verify the specific ordering suffix to confirm the package type and tape/reel specifications. Ensure compatibility with existing PCB footprints for 14-pin DIP components. Confirm RoHS compliance status if required by project specifications. Check datasheet revisions for any updates to electrical characteristics or recommended operating conditions before finalizing procurement.

Selection Notes

Select this component when a quad 2-input NOR gate is required in a through-hole package. Consider the 2V to 6V supply voltage range and 5.2mA output drive capability. Verify that the -40°C to +85°C operating temperature range meets environmental requirements. Compare propagation delays against system timing constraints to ensure signal integrity.

Part Context

This part belongs to the SN74HC series of high-speed CMOS logic devices from Texas Instruments. The HC series combines the speed of low-power Schottky TTL with the low power consumption of standard CMOS. These devices are widely used in general-purpose digital applications where moderate speed and low power are essential.

Replacement Considerations

Check for direct pin-compatible alternatives such as other manufacturers' 74HC02 equivalents. Verify that substitute parts meet the same voltage, current, and temperature specifications. Ensure logical function remains identical without requiring circuit redesign.