A54SX72A-CQ256

Overview

The A54SX72A-CQ256 is a high-reliability Field Programmable Gate Array from the HiRel SX-A family, manufactured by Microchip Technology. It features 108,000 system gates and 6,036 logic modules within a 256-pin Ceramic Quad Flat Pack (CQFP) package. The device supports mixed-voltage operation at 2.5 V, 3.3 V, and 5 V with 5 V input tolerance. It achieves a maximum system performance of 215 MHz in military temperature ranges, characterized by a 5.3 ns clock-to-out delay. The component includes 213 user-programmable I/O pins and operates across an ambient temperature range of –55°C to +125°C.

Feature Summary

• Military-grade reliability with MIL-STD-883 Class B certification and QML compliance for harsh environments.
• Nonvolatile antifuse architecture providing deterministic timing and protection against reverse engineering.
• Hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements.
• Integrated Silicon Explorer II diagnostic capability for in-system verification and boundary-scan testing.

Applications

• High-reliability military avionics and defense electronics
• Spacecraft and satellite communication subsystems
• Industrial control systems requiring extended temperature stability

Procurement Notes

Verify that the specific ordering suffix matches the required speed grade and package variant. Confirm that the supplier provides traceability documentation consistent with MIL-STD-883 Class B standards. Ensure storage conditions adhere to moisture sensitivity levels prior to soldering. Validate that the component lot corresponds to current manufacturing specifications.

Selection Notes

Select this model when design requirements demand radiation-tolerant alternatives or strict military environmental compliance. The CQFP package is suitable for applications requiring hermetic sealing. Consider the 108,000 gate capacity for complex logic integration replacing multiple CPLDs. Verify voltage domain compatibility for mixed 3.3 V and 5 V signaling interfaces.

Part Context

This component belongs to the Actel SX-A family of antifuse FPGAs, now managed under Microchip Technology following acquisition. The HiRel variants are specifically screened and tested to meet rigorous Department of Defense quality management specifications. They serve as a bridge between commercial FPGA capabilities and space-qualified hardware requirements.

Replacement Considerations

Direct pin-compatible replacements within the same family include other A54SX72A variants with different speed grades or package types. Cross-family migration requires careful review of logic block counts and I/O configurations. Verify that any substitute maintains the necessary hermetic seal and thermal characteristics.