A54SX32A-2FGG484I

Overview

The A54SX32A-2FGG484I is an antifuse-based Field Programmable Gate Array from the SX-A family, manufactured by Microsemi. It provides 48,000 system gates and 2,880 logic modules within a 484-pin Fine Pitch Ball Grid Array package. The device supports up to 249 user-programmable I/O pins and features a maximum operating frequency of 250 MHz with internal performance reaching 350 MHz. It operates at 2.5 V, 3.3 V, or 5 V with mixed-voltage support and includes three global clock networks.

Feature Summary

• Supports hot-swap capabilities for most I/O standards, allowing safe insertion into active systems without power sequencing requirements.
• Features deterministic timing through patented metal-to-metal antifuse interconnects and dedicated routing resources like DirectConnect and FastConnect.
• Includes Actel Secure Programming Technology with FuseLock to prevent reverse engineering and unauthorized design access.

Applications

• High-performance digital signal processing requiring fast counters and state machines
• PCI-compliant interface designs supporting 66 MHz operation
• Secure embedded control applications utilizing nonvolatile single-chip architecture

Procurement Notes

Verify the specific speed grade suffix '2' corresponds to the required timing constraints, as it indicates approximately 25% faster performance than standard grades. Confirm the 'I' suffix matches industrial temperature range requirements (-40°C to +85°C). Ensure the 484-pin FBGA footprint aligns with PCB layout specifications before ordering.

Selection Notes

Select this component when high-density logic (48K gates) is needed alongside extensive I/O connectivity (up to 249 pins). The -2 speed grade is suitable for designs exceeding 200 MHz system performance. Consider the 484-pin package only if sufficient board space allows for fine-pitch BGA assembly and thermal management.

Part Context

This part belongs to the SX-A family of antifuse FPGAs, which utilize a sea-of-modules architecture. Unlike volatile SRAM-based FPGAs, these devices offer instant-on functionality and inherent security due to their nonvolatile nature. The family ranges from 12,000 to 108,000 system gates, with the A54SX32A representing the mid-range capacity tier.

Replacement Considerations

Direct pin-compatible replacements are not explicitly listed in public documentation. Designers migrating from older Actel SX families should verify I/O voltage compatibility and timing differences between speed grades. Alternative solutions may require retiming analysis due to variations in antifuse vs. SRAM architectures.