A54SX16A-1PQ208M

Overview

The A54SX16A-1PQ208M is a Field Programmable Gate Array from the Actel SX-A family, manufactured by Microchip Technology. It features 24,000 system gates and supports up to 175 user-programmable I/O pins within a 208-pin Plastic Quad Flat Pack (PQFP) package. The device operates on a 0.22 μm / 0.25 μm CMOS antifuse process with a nominal supply voltage of 2.5 V. It delivers 250 MHz system performance and 350 MHz internal clock speeds. The component includes 1,452 combinatorial cells and 924 dedicated flip-flops, supporting mixed-voltage I/O standards including 3.3 V PCI, 5 V TTL, and 2.5 V LVCMOS2.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse technology for permanent interconnection.
• Hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements.
• Deterministic timing architecture featuring DirectConnect and FastConnect routing resources for predictable signal propagation.
• Integrated security via FuseLock technology to prevent reverse engineering and unauthorized design access.

Applications

• High-speed controllers and address decoding logic
• Peripheral bus interfaces requiring 66 MHz PCI compliance
• DSP and co-processor functions in embedded systems

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm temperature grade and packaging details. Confirm current availability status as legacy components may have limited distribution channels or require alternative sourcing strategies.

Selection Notes

Select this model when 24,000 system gates and 175 I/Os are required in a PQFP-208 form factor. Ensure the design utilizes the -1 speed grade for approximately 15% faster performance than standard devices. Verify that the application environment matches the specified commercial temperature range.

Part Context

This part belongs to the Actel SX-A family of FPGAs, which transitioned to Microchip Technology following acquisition. The SX-A series is characterized by its high-performance antifuse architecture, offering deterministic timing and robust security features suitable for aerospace, defense, and industrial applications requiring long-term stability.

Replacement Considerations

Direct pin-compatible replacements within the same package and gate count are not explicitly listed in public datasheets. Consider evaluating other members of the SX-A family or newer Microchip FPGA families based on capacity and interface requirements.