A54SX32A-CQ256

Overview

The A54SX32A-CQ256 is a high-reliability Field Programmable Gate Array from the HiRel SX-A family, manufactured by Microchip Technology. It features 48,000 system gates and supports up to 228 user-programmable I/O pins within a 256-pin Ceramic Quad Flat Pack (CQFP) package. The device operates at a standard speed grade with a maximum internal performance of 240 MHz and a clock-to-out time of 5.3 ns. It utilizes a 0.25/0.22 µ CMOS process technology and supports mixed voltage operation at 2.5 V, 3.3 V, and 5 V. The component is qualified for military temperature ranges from -55°C to +125°C.

Feature Summary

• Military-grade reliability with QML certification and MIL-STD-883 Class B compliance.
• Nonvolatile antifuse architecture providing deterministic timing and protection against reverse engineering via FuseLock™.
• Hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements.
• Configurable I/O standards supporting 3.3 V/5 V PCI, LVTTL, and TTL with individual slew rate control.

Applications

• High-reliability military avionics and defense systems
• Spacecraft embedded processing and control logic
• Harsh environment industrial automation controllers

Procurement Notes

Verify that the specific ordering suffix matches the required speed grade and package variant. Confirm that the procurement channel provides appropriate handling for hermetic ceramic packages. Ensure compliance with export regulations such as ITAR or EAR if applicable to the destination. Request full traceability documentation including lot history and test reports required for quality assurance in regulated industries.

Selection Notes

Select this model when design requirements demand radiation tolerance alternatives or extreme environmental stability. The CQFP package is suitable for applications requiring hermetic sealing against moisture and contaminants. Consider the 228 I/O limit and 48K gate capacity during initial resource planning. Verify that the development tools support the specific antifuse programming requirements for the selected speed grade.

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 engineered for sectors requiring long-term availability and strict quality controls. The CQFP package option distinguishes it from plastic surface-mount counterparts, offering superior thermal and mechanical robustness for aerospace deployments.

Replacement Considerations

Direct pin-compatible replacements within the same family include other speed grades of the A54SX32A series. Higher capacity options like the A54SX72A may serve as upgrades if additional logic resources are needed. Verify that any substitute maintains the required hermetic packaging and military temperature qualification.