A54SX32-1CQ256

Overview

The A54SX32-1CQ256 is a military-grade Field Programmable Gate Array from the HiRel SX-A family, manufactured by Microsemi. It features 48,000 system gates and 2,880 logic modules within a hermetic CQFP-256 ceramic package. The device supports mixed-voltage operation at 2.5 V, 3.3 V, and 5 V with 5 V input tolerance. It achieves an internal performance of 240 MHz and a system performance of 215 MHz in military temperature ranges (-55°C to +125°C). Key specifications include a pin-to-pin clock-to-out delay of 5.3 ns, up to 228 user-programmable I/O pins, and compliance with MIL-STD-883 Class B standards.

Feature Summary

• Hermetic ceramic packaging designed for high-reliability military and space applications
• Nonvolatile antifuse architecture providing deterministic timing and low power consumption
• Hot-swap compliant I/Os allowing safe insertion into active systems without damage
• Integrated boundary scan testing (JTAG) for in-system diagnostic verification

Applications

• Military avionics and flight control systems requiring radiation tolerance
• Spacecraft communication and telemetry processing units
• High-reliability defense electronics and secure signal processing
• Prototyping for RadTolerant designs using pin-compatible migration paths

Procurement Notes

Verify that the specific part number corresponds to the Military Temperature grade and MIL-STD-883 Class B certification. Confirm the ordering suffix indicates the correct speed grade and package variant. Ensure documentation includes QML certification records if required for procurement compliance. Check for Actel Secure Programming Technology implementation to prevent reverse engineering.

Selection Notes

Select this component when design requirements demand hermetic packaging and extended temperature operation beyond commercial limits. Consider the A54SX32A for its balance of 48,000 system gates and 256-pin interface. Evaluate the 240 MHz internal performance against system timing constraints. Verify compatibility with existing 3.3 V or 5 V PCI interfaces due to mixed-voltage support capabilities.

Part Context

This device belongs to the HiRel SX-A family of antifuse FPGAs, which are distinct from SRAM-based counterparts due to their nonvolatile nature. The family includes variants like the A54SX72A for higher capacity. The CQFP-256 package provides a robust ceramic seal suitable for harsh environments. The -1 speed grade denotes approximately 15% faster performance than standard speed grades within the same family.

Replacement Considerations

Direct replacements must match the CQFP-256 ceramic package and MIL-STD-883 Class B qualification. The A54SX32A-1CQ256M is a compatible alternative within the same family offering identical functionality. Verify pinout compatibility and timing parameters before substitution. Commercial equivalents lack the required hermetic sealing and military temperature range.