A54SX72A-1CQ256

Overview

The A54SX72A-1CQ256 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 internal clock frequency of 240 MHz and a pin-to-pin performance of 215 MHz in military temperature ranges. The component includes 213 user-programmable I/Os, up to 2,012 dedicated flip-flops, and four quadrant clocks.

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 systems requiring radiation tolerance alternatives.
• Spacecraft instrumentation and satellite communication subsystems.
• Industrial control systems demanding long-term stability and deterministic performance.
• Secure hardware implementations utilizing FuseLock technology to prevent design theft.

Procurement Notes

Verify that the specific ordering suffix matches the required speed grade and package variant. Confirm that the procurement channel provides genuine components with traceable documentation. Ensure the supplier adheres to handling guidelines for ceramic packages. Check for any relevant quality certifications or lot traceability records required for your application's compliance standards.

Selection Notes

Select this model when high gate density and military environmental ratings are necessary. The -1 speed grade offers faster performance than standard variants. Ensure the design utilizes the 256-pin CQFP footprint correctly. Consider the mixed-voltage I/O capabilities if interfacing with legacy 5 V logic. Verify that the thermal characteristics of the ceramic package suit the enclosure design.

Part Context

This component belongs to the Actel HiRel SX-A family of FPGAs, which utilize antifuse technology for nonvolatile configuration. The A54SX72A represents the higher capacity tier within this series, offering 108,000 system gates. It is designed as a drop-in replacement for lower-density devices in existing high-reliability designs while providing increased logic resources.

Replacement Considerations

Direct pin-compatible replacements within the same family include the A54SX32A-1CQ256, though it offers lower gate density. Cross-family migration to newer Microchip FPGA architectures requires significant schematic and software redesign due to architectural differences.