A54SX16-PQG208

Overview

The Microsemi A54SX16-PQG208 is a nonvolatile Field Programmable Gate Array (FPGA) from the SX-A family, fabricated using 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 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 at standard speed grades with commercial temperature ratings (0°C to +70°C). Key specifications include 1,452 logic modules, 924 dedicated flip-flops, and three global clock networks. It features mixed-voltage I/O support for 2.5 V, 3.3 V, and 5 V standards.

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.
• Deterministic timing performance enabled by DirectConnect and FastConnect routing resources that minimize signal propagation delays.
• Integrated boundary-scan testing (BST) compliant with IEEE Standard 1149.1 (JTAG) for in-system diagnostic verification.

Applications

• High-performance digital logic integration replacing complex programmable logic devices (CPLDs)
• PCI-compliant interface designs supporting 66 MHz bus speeds
• Mixed-voltage system interconnects requiring 2.5 V, 3.3 V, and 5 V compatibility

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm the exact speed grade, temperature range, and packaging compliance. Confirm whether the component requires lead-free or standard tin-lead termination based on current manufacturing lot specifications. Ensure the source documentation matches the Actel/Microchip SX-A family datasheet version to validate pin assignments and electrical characteristics.

Selection Notes

Select this device when a nonvolatile FPGA with deterministic timing is required for moderate complexity logic designs. Consider the 208-pin PQFP package constraints for PCB layout and thermal management. Evaluate the available global clock resources and I/O voltage flexibility against system interface requirements before finalizing the part number selection.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which were acquired by Microsemi Corporation. The SX-A series is characterized by its high-density antifuse technology and robust I/O capabilities. The A54SX16 variant sits between the lower-density A54SX08 and higher-density A54SX32 models in terms of gate count and resource availability.

Replacement Considerations

Compatible alternatives within the same family include the A54SX08A and A54SX32A, provided pin counts and resource requirements align. Cross-family replacements require careful evaluation of I/O pin mapping and logic capacity differences.