A54SX16A-FG144

Overview

The A54SX16A-FG144 is a Field Programmable Gate Array from the Actel SX-A family, fabricated on 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 24,000 system gates and 1,452 logic modules within a 144-pin Fine Pitch Ball Grid Array (FBGA) package with a 1.0 mm pitch. The device supports up to 111 user-programmable I/O pins and features internal clock frequencies of 350 MHz. It operates at supply voltages of 2.5 V, 3.3 V, or 5 V, supporting mixed-voltage operation with 5 V input tolerance.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnect elements for permanent low-impedance connections.
• Hot-swap compliant I/Os allowing insertion into active systems without degrading host reliability or requiring specific power sequencing.
• Deterministic timing architecture featuring DirectConnect and FastConnect routing resources for predictable signal propagation delays.
• Integrated security via FuseLock technology preventing reverse engineering and unauthorized reading of design contents.

Applications

• High-performance digital logic integration replacing complex CPLDs
• PCI-compliant interface designs supporting 66 MHz operations
• Systems requiring deterministic timing and pin-locking capabilities

Procurement Notes

Verify the specific speed grade suffix associated with the FG144 package, as standard speed variants exist alongside faster options. Confirm temperature range requirements against available commercial, industrial, automotive, or military grades. Ensure the ordering suffix matches the desired RoHS compliance status if lead-free packaging is required for the assembly process.

Selection Notes

Select this component when 24,000 system gates and 1,452 logic modules are sufficient for the design complexity. Consider the FBGA package constraints regarding board space and thermal dissipation. Evaluate the need for specific I/O standards such as 3.3V PCI or 5V TTL compatibility. Verify that the antifuse programming infrastructure aligns with the project's non-recurring engineering budget and revision flexibility needs.

Part Context

This part belongs to the Actel SX-A FPGA family, which utilizes antifuse technology rather than volatile SRAM configurations. The SX-A series offers high performance and security, distinguishing it from reprogrammable logic families. The A54SX16A variant specifically targets mid-range capacity applications requiring robust I/O flexibility and deterministic timing characteristics.

Replacement Considerations

Direct replacements include other speed grades of the A54SX16A in the same FBGA144 package, such as A54SX16A-1FGG144 or A54SX16A-2FGG144, provided the electrical parameters meet the design requirements. Cross-family migration to Microchip RT or PolarFire devices requires significant architectural redesign due to differences in configuration memory and logic structure.

FAQ

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

The A54SX16A supports internal clock frequencies up to 350 MHz, enabling fast execution of complex logic functions.

How does the SX-A architecture ensure design security?

Security is ensured through Actel Secure Programming Technology with FuseLock, which prevents reverse engineering and unauthorized reading of the antifuse configuration data.

Can the A54SX16A be hot-swapped into an active system?

Yes, the I/Os are configured to be hot-swappable, meaning the device outputs remain in a high-impedance state until normal operating conditions are reached, preventing damage to the host system.