A54SX32A-1FG484M

Overview

The A54SX32A-1FG484M is a Field Programmable Gate Array from the SX-A family, fabricated using 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 48,000 system gates and supports up to 249 user-programmable I/O pins. The device operates at a maximum system frequency of 250 MHz with internal performance reaching 350 MHz. It utilizes a sea-of-modules architecture featuring register cells (R-cells) and combinatorial cells (C-cells). The component is housed in a 484-pin Fine Pitch Ball Grid Array (FBGA) package.

Feature Summary

• Supports mixed-voltage operation for 2.5 V, 3.3 V, and 5 V I/O standards with 5 V input tolerance.
• Features hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements.
• Includes dedicated boundary-scan testing capabilities compliant with IEEE Standard 1149.1 (JTAG).
• Provides deterministic timing through patented metal-to-metal programmable antifuse interconnect elements.

Applications

• High-performance logic integration requiring deterministic timing and pin-locking.
• Systems requiring hot-swappable interface capabilities for maintenance or redundancy.
• Applications needing secure programming to prevent reverse engineering via FuseLock technology.

Procurement Notes

Verify the specific ordering suffix 'M' corresponds to the military temperature grade (-55°C to +125°C) as defined in the official Actel SX-A datasheet. Confirm that the FBGA-484 package dimensions match the target PCB footprint. Ensure compliance with RoHS directives if required by the end application, noting that standard packaging may differ from lead-free options.

Selection Notes

Select this part when 48,000 system gates are sufficient for the design complexity. The -1 speed grade offers approximately 15% faster performance than the standard grade. Verify that the 484-pin FBGA package is suitable for the assembly process. Consider the availability of global clocks and quadrant clock resources if high-speed clock distribution is required within the design.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which are known for their nonvolatile antifuse technology. The SX-A series bridges the gap between CPLDs and larger FPGAs, offering high density with low power consumption. The A54SX32A variant specifically targets designs requiring moderate gate counts with robust I/O flexibility and security features.

Replacement Considerations

Direct replacements within the same package and pinout include other speed grades of the A54SX32A such as the standard or -2 variants, provided timing constraints allow. Cross-family migration to Microchip PolarFire or IGLOO devices requires significant schematic and code redesign due to architectural differences.