A54SX72A-FGG484

Overview

The A54SX72A-FGG484 is a Field Programmable Gate Array from the SX-A family, manufactured by Microchip Technology. It features 108,000 system gates and 6,036 logic modules within a 484-pin Fine Pitch Ball Grid Array (FBGA) package. The device supports up to 360 user-programmable I/O pins and includes three global routed clocks plus four quadrant clocks. It operates with internal clock frequencies up to 350 MHz and system performance up to 250 MHz. The part utilizes 0.22 μm / 0.25 μm CMOS antifuse technology and supports mixed-voltage operation at 2.5 V, 3.3 V, and 5 V.

Feature Summary

• Nonvolatile single-chip solution using 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.
• Configurable weak-resistor pull-up or pull-down capabilities for I/O pins during power-up to ensure deterministic states.
• Support for IEEE Standard 1149.1 Boundary-Scan Testing via JTAG interface in dedicated or flexible modes.

Applications

• High-performance digital signal processing requiring fast counters and state machines.
• PCI-compliant interfaces operating at 66 MHz.
• Mixed-voltage system integration supporting 3.3 V/5 V PCI, 5 V TTL, and 3.3 V LVTTL standards.

Procurement Notes

Verify the specific speed grade suffix associated with the FGG484 package, as standard speed variants exist alongside faster options. Confirm that the industrial temperature range (-40°C to +85°C) aligns with the 'I' suffix designation if required. Ensure the design accounts for the non-reprogrammable nature of antifuse technology before finalizing procurement.

Selection Notes

Select this model when high gate density and deterministic timing are critical. The A54SX72A provides four quadrant clocks suitable for large-scale designs. Consider the 484-pin FBGA package constraints regarding PCB routing density. Verify that the 350 MHz internal performance meets the specific frequency requirements of the target application logic.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which were originally developed by Actel Corporation and later acquired by Microchip Technology. The SX-A series is characterized by its sea-of-modules architecture and antifuse-based nonvolatile configuration. It serves as a bridge between complex CPLDs and larger gate arrays, offering cost-effective integration for high-speed logic applications.

Replacement Considerations

Direct functional replacements within the same package and pinout are not explicitly listed in the provided documentation. Designers may consider other devices within the A54SX72A series with different speed grades or temperature ratings, such as the -1 or -2 variants, provided the timing specifications remain compatible with the system requirements.