A54SX16A-1PQ208

Overview

The A54SX16A-1PQ208 is a Field Programmable Gate Array from the Microchip Actel SX-A family, featuring 24,000 system gates and 175 user-programmable I/O pins. It utilizes 0.22 μm / 0.25 μm CMOS antifuse technology to deliver 250 MHz system performance with an internal clock frequency of up to 350 MHz. The device operates at a nominal voltage of 2.5 V, supporting a range of 2.25 V to 2.75 V for core logic, while accommodating mixed-voltage I/O standards including 3.3 V and 5 V tolerance. Packaged in a 208-pin Plastic Quad Flat Pack (PQFP), it supports commercial temperature grades.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnects 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 through segmented routing and high-drive clock networks, ensuring predictable signal propagation across the fabric.
• Integrated security features via FuseLock technology to prevent reverse engineering and unauthorized design access.

Applications

• High-performance digital signal processing implementations requiring deterministic latency.
• PCI-compliant interface designs operating at standard bus frequencies.
• Industrial control systems necessitating mixed-voltage I/O compatibility and hot-swap capabilities.
• Secure embedded applications requiring protection against intellectual property theft.

Procurement Notes

Verify component authenticity through authorized Microchip distributors due to potential availability constraints. Confirm specific ordering suffixes match required temperature grades and packaging specifications. Check for end-of-life notifications or product discontinuance notices prior to finalizing procurement plans.

Selection Notes

Select this model when 24,000 system gates and 175 I/Os are sufficient for the target logic density. Ensure the 208-pin PQFP package fits the PCB footprint constraints. Verify that the -1 speed grade meets the 250 MHz system performance requirement compared to standard speed options.

Part Context

This component belongs to the Actel SX-A FPGA family, which bridges the gap between CPLDs and gate arrays using antifuse technology. The A54SX16A variant specifically offers a mid-range capacity within the series, providing a balance of logic resources and pin count suitable for complex digital logic integration.

Replacement Considerations

Direct pin-compatible replacements may not exist due to the proprietary antifuse architecture. Consider evaluating newer Microchip PolarFire or IGLOO families for modern equivalents, though these require significant design adaptation and do not share the same nonvolatile configuration method.