CD54HC02F3A

The Texas Instruments CD54HC02F3A is a quad 2-input NOR gate integrated circuit fabricated in high-speed CMOS logic, part of the 54HC military-grade family. Housed in a ceramic dual-in-line package (CDIP), it operates across a supply voltage range of 2 V to 6 V and delivers balanced output drive capability of ±5.2 mA, making it compatible with TTL, LSTTL, and CMOS loads while maintaining low quiescent power consumption. The device is rated for full military temperature operation from –55 °C to +125 °C, and the hermetically sealed CDIP body provides superior resistance to moisture, thermal shock, and mechanical stress compared to plastic packaging, ensuring reliable performance in extreme environments.

Typical applications include signal gating, Boolean logic implementation, clock conditioning, and control logic within avionics modules, radar processors, missile guidance systems, satellite telemetry, and hardened industrial controllers. NOR gates frequently serve as fundamental building blocks for flip-flops, oscillators, and error-detection chains where predictable propagation delay and noise immunity are critical. From a procurement standpoint, the 54HC logic family occupies a well-established but mature node in the semiconductor lifecycle; long-term availability is generally sustained through Texas Instruments’ military product line, yet design teams should verify active product status and consider die or wafer bank provisions for programs with extended sustainment requirements. The ceramic package and military temperature rating indicate compliance with MIL-PRF-38535 or similar high-reliability standards, making source-controlled documentation, lot traceability, and authorized distribution essential for maintaining pedigree in defense and aerospace supply chains.