JM54AC574SSA-RH

Overview

The JM54AC574SSA-RH is a radiation-hardened octal D-type flip-flop manufactured by National Semiconductor. It features three-state outputs and is designed for aerospace applications requiring high reliability. The device operates within a voltage range of 2 V to 6 V for the CMOS series and supports a temperature range from -55 °C to +125 °C. It provides total ionizing dose (TID) hardness up to 300 krad (Si) and is immune to single event latch-up (SEL) up to 110 MeV.cm²/mg. The component is housed in hermetic packages to withstand harsh environmental conditions.

Feature Summary

• Radiation hardened design suitable for aerospace environments
• Immune to single event latch-up (SEL)
• High total ionizing dose (TID) tolerance
• Hermetic packaging for harsh condition resilience

Applications

• Aerospace satellite systems
• Spacecraft data processing units
• Harsh environment industrial control
• Military communication equipment

Procurement Notes

Verify the specific suffix 'RH' indicates radiation hardening qualification as per manufacturer documentation. Confirm package type and pinout compatibility with existing board layouts. Ensure supply chain sources provide traceability certificates required for aerospace procurement standards. Check for updated revision levels that may affect mechanical dimensions or electrical characteristics.

Selection Notes

Select this component when radiation hardness is mandatory for mission-critical applications. Compare TID and SEL ratings against projected orbital or operational exposure levels. Verify operating voltage compatibility with system power rails within the specified 2 V to 6 V range. Consider hermetic package requirements versus cost and weight constraints for the specific platform.

Part Context

This part belongs to the 54AC/54ACT series of high-speed CMOS logic functions. The 54AC574 specifically denotes an octal D-type flip-flop with three-state outputs. The 'JM' prefix typically indicates military grade or specific vendor coding, while 'RH' confirms radiation hardening. This series is engineered to meet stringent aerospace industry standards for reliability and performance under extreme conditions.

Replacement Considerations

Direct replacements must match radiation hardness specifications. Equivalent parts include other 54AC574 variants from manufacturers like STMicroelectronics offering similar TID and SEL ratings. Verify hermetic package availability if environmental sealing is critical. Cross-reference pinouts and electrical parameters to ensure functional compatibility without circuit redesign.