A54SX32-PQ208M

Overview

The A54SX32-PQ208M is a military-grade Field Programmable Gate Array from the Actel SX-A family, manufactured by Microchip Technology. It utilizes 0.22 μm / 0.25 μm CMOS antifuse technology and provides 48,000 system gates. The device features 1,452 combinatorial cells, 924 dedicated flip-flops, and supports up to 174 user I/Os in its 208-pin PQFP package. It operates within a voltage range of 2.3 V to 2.75 V with a nominal supply of 2.5 V. The component supports mixed-voltage I/O standards including 2.5 V, 3.3 V, and 5 V, ensuring 5 V input tolerance. It offers a maximum internal performance frequency of 350 MHz and functions reliably across a temperature range of -55°C to +125°C.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnect elements for permanent configuration without external memory.
• Hot-swap compliant I/O architecture allowing safe insertion into active systems without power sequencing requirements or system degradation.
• Deterministic timing performance enabled by patented DirectConnect and FastConnect routing resources that minimize signal propagation delays.
• Integrated security features including FuseLock technology to prevent reverse engineering and unauthorized design access.

Applications

• High-reliability aerospace and defense electronic systems requiring radiation-hardened or wide-temperature operation.
• Industrial control applications necessitating hot-swappable capabilities and deterministic real-time processing.
• Complex logic integration replacing multiple CPLDs or gate arrays in cost-sensitive high-performance designs.

Procurement Notes

Verify the specific ordering suffix 'M' confirms the military temperature grade (-55°C to +125°C) as defined in the official datasheet. Confirm the package type matches the required 208-pin Plastic Quad Flat Pack (PQFP). Ensure compatibility with existing Actel Designer software versions for programming and place-and-route operations. Check for any Product Change Notifications regarding manufacturing site updates or material substitutions.

Selection Notes

Select this component when designing for environments requiring extreme temperature stability and nonvolatile configuration without external boot devices. Consider the 48,000 system gate capacity against the available 1,452 combinatorial cells and 924 flip-flops to ensure sufficient logic density. Evaluate the 174 user I/O limit against interface requirements. Verify that the 2.5 V core voltage aligns with the system's power distribution network and that mixed-voltage I/O levels meet peripheral specifications.

Part Context

This part belongs to the Actel SX-A family of FPGAs, which are characterized by their antifuse-based nonvolatile architecture. The SX-A series was designed to offer high-speed performance with low power consumption, bridging the gap between complex programmable logic devices and gate arrays. The 'A54SX32' designation indicates the specific logic density tier within the family, providing 48,000 system gates.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Microchip Technology for current alternative recommendations or migration paths due to the discontinuation status of many speed grades and temperature variants within the SX-A family.