A54SX72A-1CQ256B

Overview

The A54SX72A-1CQ256B 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 operates at a maximum system frequency of 215 MHz with a clock-to-out delay of 5.3 ns. It supports mixed-voltage I/O standards including 2.5 V, 3.3 V, and 5 V, with up to 213 user-programmable I/O pins. The component is qualified for military temperature ranges (-55°C to +125°C) and meets MIL-STD-883 Class B requirements.

Feature Summary

• Nonvolatile antifuse architecture providing deterministic timing and inherent design security against reverse engineering.
• Hot-swap compliant I/Os allowing insertion into active systems without power sequencing or system degradation.
• Integrated Boundary-Scan Testing (BST) compliant with IEEE 1149.1 for in-system verification and diagnostic capabilities.

Applications

• Military and aerospace electronic systems requiring radiation tolerance and high reliability.
• High-performance digital signal processing and control logic integration.
• Prototyping platforms for RadTolerant designs due to pin compatibility.

Procurement Notes

Verify that the specific ordering suffix 'B' corresponds to MIL-STD-883 Class B qualification as defined in the official datasheet. Confirm the ceramic package type matches the required environmental specifications. Ensure the speed grade '1' aligns with the target system timing constraints before finalizing procurement orders.

Selection Notes

Select this model when high gate density and fast internal performance are required for complex logic applications. The -1 speed grade offers approximately 15% faster performance than standard variants. Consider the 256-pin CQFP package only if hermetic sealing and specific pin counts are necessary for the target hardware design.

Part Context

This component belongs to the Actel HiRel SX-A family of FPGAs, which utilizes a metal-to-metal antifuse technology. The family includes lower-density devices like the A54SX32A. The A54SX72A variant provides significantly higher logic capacity, making it suitable for more complex integrated circuit replacements previously handled by multiple CPLDs or gate arrays.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should verify pinout compatibility and electrical characteristics carefully if considering alternative FPGA families, as the antifuse architecture differs significantly from SRAM-based devices.