A54SX32-1CQ256M

Overview

The A54SX32-1CQ256M is a HiRel SX-A Field Programmable Gate Array featuring 48,000 system gates and 2,880 logic modules. It operates at a maximum internal frequency of 240 MHz with a pin-to-pin clock-to-out delay of 5.3 ns in military temperature ranges. The device utilizes a 0.25 µm CMOS process and supports mixed-voltage I/O standards including 2.5 V, 3.3 V, and 5 V with 5 V input tolerance. It is housed in a hermetic CQFP-256 package designed for high-reliability applications.

Feature Summary

• Military-grade reliability with QML certification and MIL-STD-883 Class B compliance
• Nonvolatile antifuse architecture providing deterministic timing and design security
• Hot-swap compliant I/Os supporting cold-sparing capabilities without voltage sequencing
• Integrated Silicon Explorer II diagnostic capability for in-system verification

Applications

• High-reliability military avionics systems
• Spacecraft embedded processing units
• Defense communication infrastructure
• Radiation-tolerant prototyping platforms

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure compatibility with Actel Designer or Libero IDE software tools for programming. Confirm that the procurement channel provides traceability documentation required for MIL-STD-883 Class B devices.

Selection Notes

Select this component when nonvolatile configuration and high-speed performance are required in harsh environments. Compare the 240 MHz internal speed against standard commercial variants if radiation tolerance is not needed. Consider the 256-pin ceramic package constraints for board layout and thermal management in enclosed military enclosures.

Part Context

This part belongs to the Microsemi (formerly Actel) HiRel SX-A family, which bridges the gap between commercial FPGAs and fully radiation-hardened designs. It shares architectural similarities with the RadTolerant series but focuses on high-reliability terrestrial and aerospace applications requiring strict quality control and hermetic packaging.

Replacement Considerations

Direct replacements include other A54SX32A variants with different speed grades or packages, such as A54SX32A-1CQ256M. Verify pinout compatibility before substitution. Commercial equivalents lack the hermetic seal and military testing requirements.