A54SX16A-FFGG256

Overview

The A54SX16A-FFGG256 is a Field Programmable Gate Array from the SX-A family, fabricated using 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 24,000 typical system gates and supports up to 180 user-programmable I/O pins. The device operates with internal clock frequencies reaching 350 MHz and delivers 250 MHz system performance. It features 1,452 configurable logic blocks (CLBs) and up to 990 dedicated flip-flops. The component utilizes a 256-pin Fine Pitch Ball Grid Array (FBGA) package.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnect elements for permanent low-impedance connections.
• Supports mixed-voltage operation across 2.5 V, 3.3 V, and 5 V domains with 5 V input tolerance and drive strength.
• Hot-swap compliant I/Os allowing safe insertion into electrically active systems without degrading host reliability.
• Includes Actel Secure Programming Technology with FuseLock to prevent reverse engineering and design theft.

Applications

• High-performance digital signal processing requiring deterministic timing
• PCI-compliant interface designs operating at 66 MHz
• Complex state machine implementations utilizing fast local routing resources

Procurement Notes

Verify the specific speed grade suffix associated with the FFGG256 package, as standard speed variants are available alongside faster options. Confirm that the ordering suffix indicates RoHS compliance if environmental regulations require it. Ensure the temperature grade matches the operational environment requirements before finalizing procurement orders.

Selection Notes

Select this device when high gate density and robust security features are required in a nonvolatile FPGA architecture. Consider the 256-pin FBGA package constraints for PCB layout and thermal management. Evaluate the need for mixed-voltage I/O capabilities and hot-swap functionality against alternative logic families.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which are designed for cost-effective, low-power, and high-performance applications. The family utilizes antifuse technology to provide secure, one-time programmable logic solutions suitable for industrial and commercial environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing board layouts and software tools when considering alternative devices from the same manufacturer or different vendors.

FAQ

How does the SX-A architecture ensure security against reverse engineering?

Security is ensured through Actel's FuseLock technology and the inherent difficulty of distinguishing between programmed and unprogrammed antifuses. Special security fuses prevent internal probing and overwriting, protecting intellectual property.

What is the maximum internal clock frequency supported by the A54SX16A?

The SX-A family devices, including the A54SX16A, support internal clock frequencies up to 350 MHz, enabling fast execution of complex logic functions.

Can the A54SX16A be used in hot-swap applications?

Yes, the I/Os are configured to be hot-swappable, with the exception of 3.3 V PCI. During power-up or down, all I/Os are tristated, preventing damage to the host system.