A54SX16A-FGG256

Overview

The A54SX16A-FGG256 is a Field Programmable Gate Array from the SX-A family, featuring 24,000 system gates and 180 user-programmable I/O pins. It utilizes 0.22 μm / 0.25 μm CMOS antifuse technology with a standard operating voltage of 2.5 V (range 2.25 V to 2.75 V). The device supports a maximum system performance frequency of 250 MHz and internal clock frequencies up to 350 MHz. It operates within a commercial temperature range of 0°C to +70°C and is housed in a 256-pin Fine Pitch Ball Grid Array (FBGA) package.

Feature Summary

• Nonvolatile single-chip solution using metal-to-metal programmable antifuse interconnect elements for permanent low-impedance connections.
• Supports hot-swap compliant I/Os allowing power-up/down without sequencing requirements for supply voltages.
• Includes configurable weak-resistor pull-up or pull-down capabilities for I/Os at power-up to ensure deterministic states.
• Features individual output slew rate control and mixed-voltage operation support for 2.5 V, 3.3 V, and 5 V standards.

Applications

• High-performance logic integration requiring deterministic timing and fast signal propagation.
• Systems requiring hot-swappable interface capabilities without damaging host systems.
• Designs needing mixed-voltage I/O compatibility including 3.3 V/5 V PCI and 5 V TTL.

Procurement Notes

Verify the specific speed grade suffix associated with the part number, as the base model designation does not indicate performance tier. Confirm that the FBGA256 package dimensions match the target PCB footprint. Ensure the design accounts for the nonvolatile antifuse nature, which prevents reprogramming once configured.

Selection Notes

Select this component when 24,000 system gates and 180 I/Os are required within a 256-pin FBGA form factor. Consider the commercial temperature grade limits if the application environment exceeds 70°C. Verify that the 2.5 V core voltage aligns with the available power rails in the system architecture.

Part Context

This device belongs to the Actel SX-A FPGA family, which is characterized by its sea-of-modules architecture and patented antifuse technology. The family ranges from 12,000 to 108,000 system gates, offering high-density logic with low power consumption. The SX-A series is designed for applications demanding high performance and security against reverse engineering.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Microchip/Actel resources for cross-reference information regarding newer generations or alternative packages within the same gate count class.