JM54ACT74S2A-RH

Overview

The JM54ACT74S2A-RH is a dual D-type flip-flop with preset and clear, belonging to the 54ACT series. It features TTL-compatible inputs and high-speed CMOS operation within a 4.5V to 5.5V supply range. The device includes buffered positive edge-triggered clocks for each flip-flop. It is designed for radiation-hardened applications, offering immunity to single event latch-up and upset. The component utilizes hermetic ceramic packages suitable for demanding environmental conditions.

Feature Summary

• Radiation-hardened design with immunity to single event latch-up and upset
• TTL-compatible inputs ensuring compatibility with standard logic families
• High-speed CMOS technology providing low power dissipation
• Hermetic packaging for reliability in difficult environmental conditions

Applications

• Aerospace systems requiring radiation tolerance
• Military electronic equipment operating in harsh environments
• Satellite communication subsystems
• Nuclear instrumentation interfaces

Procurement Notes

Verify that the specific suffix 'RH' denotes the radiation-hardened qualification and hermetic package type as specified by the manufacturer. Confirm compliance with relevant military standards such as SMD specifications or QML requirements. Ensure the supplier provides appropriate documentation regarding radiation testing results and material composition certificates.

Selection Notes

Select this component when radiation hardness is mandatory for the application environment. Consider the 54ACT series for its balance of speed and power consumption compared to other radiation-tolerant options. Verify that the hermetic package meets the thermal and mechanical constraints of the target system. Check availability of equivalent qualified parts if supply chain continuity is a concern.

Part Context

This part belongs to the 54-series family, which typically denotes military-grade specifications. The ACT variant indicates Advanced CMOS Technology with TTL-compatible input levels. The dual configuration contains two independent D-type flip-flops within a single package, optimizing board space for sequential logic circuits.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data.