A54SX72A-1CQ208

Overview

The Microchip Technology A54SX72A-1CQ208I is a high-reliability Field Programmable Gate Array (FPGA) belonging to the HiRel SX-A family. It features 108,000 system gates and supports up to 213 user-programmable I/O pins within a 208-pin Ceramic Quad Flat Pack (CQFP). The device operates at a speed grade of -1, providing approximately 15% faster performance than standard variants, with a maximum clock-to-out time of 6.7 ns. It utilizes 0.25/0.22 µ CMOS process technology and supports mixed-voltage operation ranging from 2.25 V to 5.25 V. The component is qualified for military temperature ranges (-55°C to +125°C) and complies with MIL-STD-883 Class B standards.

Feature Summary

• Military-grade reliability with QML certification and compliance with MIL-STD-883 Class B requirements.
• Nonvolatile antifuse architecture ensuring deterministic timing and protection against reverse engineering.
• Hot-swap compliant I/Os allowing safe insertion and removal without system degradation.
• Integrated Boundary-Scan Testing (BST) capability compliant with IEEE 1149.1 (JTAG).

Applications

• High-reliability military avionics systems
• Spacecraft electronic subsystems
• Defense communication equipment
• Harsh environment industrial control systems

Procurement Notes

Verify that the ordering suffix matches the required package type (CQFP), pin count (208), speed grade (-1), and temperature range (M for Military). Confirm specific qualification requirements such as MIL-STD-883 Class B if mandated by the design specification. Ensure compatibility with Actel Designer or Libero IDE software tools for programming and verification.

Selection Notes

Select this model when high radiation tolerance is not the primary constraint but extreme reliability and deterministic performance are critical. The -1 speed grade offers improved timing margins over standard versions. Consider the CQFP package for hermetic sealing needs in aerospace applications. Verify power supply voltage requirements align with the 2.5V/3.3V/5V mixed-voltage capabilities.

Part Context

This component is part of the HiRel SX-A family, which bridges commercial FPGA performance with military-grade durability. It serves as a lower-cost prototyping tool for RadTolerant designs while offering full pin compatibility across the family. The architecture replaces multiple CPLDs with a single-chip solution, reducing board space and complexity in high-density logic applications.

Replacement Considerations

Direct replacements within the same family include other A54SX72A variants with different packages (e.g., FGG256) or speed grades. For higher capacity needs, consider the A54SX108A series. Ensure any substitute maintains the CQFP package and military temperature rating if environmental constraints are strict.