JM54AC74BDA-RH

Overview

The JM54AC74BDA-RH is a radiation-hardened dual D-type flip-flop featuring preset and clear functions, manufactured by National Semiconductor. It belongs to the 54AC series of high-speed CMOS logic designed for aerospace applications requiring immunity to single event latch-up (SEL) and single event upset (SEU). The component operates within a voltage range of 2 V to 6 V and supports a temperature range of -55 °C to +125 °C. It is housed in hermetic packages to withstand difficult environmental conditions and complies with SMD specifications.

Feature Summary

• Radiation hardness qualification ensuring reliability in space environments
• Immunity to single event latch-up and single event upset
• Hermetic packaging for protection against harsh conditions

Applications

• Aerospace systems requiring radiation-tolerant logic
• Satellite communication equipment
• Spacecraft control circuits

Procurement Notes

Verify that the specific part number includes the required radiation hardening qualification and hermetic package type. Confirm compliance with SMD specifications if applicable to the system design. Ensure the manufacturer or authorized distributor provides documentation confirming the radiation tolerance levels and operating temperature range for the specific batch.

Selection Notes

Select this component when radiation hardness and hermetic sealing are mandatory requirements. Consider the 2 V to 6 V operating voltage range and the -55 °C to +125 °C temperature capability. Evaluate the need for dual D-type flip-flops with preset and clear functions in high-speed CMOS logic designs for aerospace applications.

Part Context

This component is part of the 54AC/54ACT series of radiation-hardened CMOS logic functions from National Semiconductor. These devices are specifically engineered for the aerospace industry, offering high-speed performance alongside robust radiation immunity. The series includes various gates, flip-flops, and counters suitable for demanding space environments.

Replacement Considerations

Check for equivalent radiation-hardened dual D-type flip-flops from other manufacturers that offer similar SEL and SEU immunity. Verify compatibility with existing hermetic packaging requirements and voltage ranges. Ensure any substitute meets the same SMD specifications and temperature ratings.