A54SX32A-1CQ208

Overview

The Microchip Technology A54SX32A-1CQ208 is a high-reliability Field Programmable Gate Array (FPGA) belonging to the HiRel SX-A family. It provides 48,000 system gates and supports up to 174 user-programmable I/O pins within a 208-pin Ceramic Quad Flat Pack (CQFP). The device operates at a speed grade of -1, delivering 215 MHz system performance and 240 MHz internal clock frequency with a 5.3 ns pin-to-pin propagation delay. It utilizes 0.25 µm CMOS process technology and features nonvolatile antifuse architecture. The component is qualified under MIL-STD-883 Class B standards and undergoes 100% testing across the military temperature range of –55°C to +125°C.

Feature Summary

• Military-grade reliability certified to MIL-STD-883 Class B standards with full QML certification for defense applications.
• Nonvolatile antifuse architecture ensures deterministic timing, design security against reverse engineering, and zero static power consumption.
• Supports hot-swap compliance and cold-sparing capabilities, allowing safe insertion into active systems without voltage sequencing requirements.
• Integrates dedicated boundary-scan testing (JTAG) and in-system diagnostic verification via Silicon Explorer II for enhanced manufacturing testability.

Applications

• High-reliability military avionics and flight control systems
• Spacecraft electronic subsystems requiring radiation tolerance and long-term stability
• Defense communication equipment and secure signal processing platforms
• Industrial automation controllers operating in extreme environmental conditions

Procurement Notes

Verify that the specific part number includes the 'M' suffix for military temperature qualification and the 'B' designation for MIL-STD-883 Class B screening. Confirm package authenticity as the CQFP variant is hermetic. Ensure compliance with ITAR regulations during acquisition, as these components are subject to export controls. Request relevant quality certificates and traceability documentation upon delivery.

Selection Notes

Select this model when designing for environments requiring guaranteed performance between –55°C and +125°C. The -1 speed grade is appropriate for logic requiring sub-6ns propagation delays. Consider the 208-pin CQFP package if board space constraints favor surface-mount ceramic packages over larger ball grid arrays. Verify that the 174 available I/O count meets interface requirements before finalizing the selection.

Part Context

This component is part of the Actel HiRel SX-A family, which bridges commercial FPGA capabilities with military durability. It serves as a lower-cost prototyping alternative to fully radiation-tolerant RadTolerant designs while maintaining pin compatibility. The family utilizes proprietary antifuse technology to replace volatile SRAM configurations, offering permanent logic definition suitable for mission-critical hardware.

Replacement Considerations

Direct replacements must match the 208-pin CQFP footprint and MIL-STD-883 Class B qualification. Evaluate other devices within the HiRel SX-A series or compatible Actel/ Microchip antifuse FPGAs. Ensure any substitute maintains the required 215 MHz system performance and supports the necessary mixed-voltage I/O standards for existing circuit interfaces.