A54SX16A-2FG144

Overview

The A54SX16A-2FG144 is a Field Programmable Gate Array from the Actel SX-A family, fabricated on 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 24,000 system gates and 1,452 logic modules within a 144-pin Fine Pitch Ball Grid Array (FBGA) package with a 1.0 mm pitch. The device supports up to 111 user-programmable I/O pins and features three global clock networks. It operates at a maximum system performance of 250 MHz with internal clock frequencies reaching 350 MHz. The component supports mixed-voltage operation including 2.5 V, 3.3 V, and 5 V I/Os with 5 V input tolerance.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnect elements for permanent low-impedance connections.
• Hot-swap compliant I/Os allowing safe insertion into electrically active systems without degrading host reliability or requiring specific power sequencing.
• Deterministic timing architecture featuring DirectConnect and FastConnect routing resources to minimize signal propagation delays and ensure predictable performance.
• Integrated security via FuseLock technology and hidden security fuses that prevent reverse engineering, internal probing, and unauthorized design overwriting.

Applications

• High-performance digital logic integration replacing complex CPLDs or gate arrays.
• Systems requiring hot-swappable capabilities and cold-sparing configurations.
• Designs needing secure IP protection against reverse engineering.
• Mixed-voltage interface applications supporting 3.3 V, 5 V PCI, and 5 V TTL standards.

Procurement Notes

Verify the specific ordering suffixes for temperature grade and packaging compliance when sourcing this component. The standard commercial grade covers 0 to +70°C, while industrial and automotive grades are available with distinct suffixes. Confirm RoHS compliance status through the 'G' suffix if required by your assembly specifications. Ensure the FBGA package dimensions match your PCB footprint requirements.

Selection Notes

Select this device for designs requiring approximately 24,000 system gates and 1,452 logic modules. The -2 speed grade offers approximately 25% faster performance than the standard grade. Consider the FBGA package for high-density pin counts in a compact form factor. Verify that the 111 available user I/Os meet your interface requirements and that the 2.5 V core voltage aligns with your power supply design.

Part Context

This part belongs to the Actel SX-A family of FPGAs, which are known for their cost-effective, low-power, and high-performance characteristics. The SX-A series utilizes antifuse technology, distinguishing it from volatile SRAM-based FPGAs. The A54SX16A variant sits between the smaller A54SX08A and larger A54SX32A devices in terms of capacity, offering a balance of logic resources and I/O flexibility for mid-range applications.

Replacement Considerations

Direct replacements within the same package and pinout include other speed grades of the A54SX16A such as the Standard (-Blank), -1, or -3 grades, provided timing constraints allow. Cross-family replacements from Microchip's current portfolio may require significant redesign due to architectural differences between antifuse and SRAM technologies.