A54SX16A-FTQG144

Overview

The A54SX16A-FTQG144 is a field-programmable gate array from the Actel SX-A family, fabricated using 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 24,000 system gates, comprising 1,452 combinatorial cells and up to 924 dedicated flip-flops (expandable to 1,800). The device operates at 250 MHz system performance with 350 MHz internal clock capability. It features 113 user I/Os in a 144-pin Thin Quad Flat Pack package. Key specifications include support for 2.5 V, 3.3 V, and 5 V mixed-voltage operation, hot-swap compliance, and IEEE 1149.1 boundary-scan testing.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnect elements for permanent low-impedance connections.
• Supports mixed-voltage I/O standards including 3.3 V/5 V PCI, 5 V TTL, 3.3 V LVTTL, and 2.5 V LVCMOS2 with individual slew rate control.
• Hot-swap compliant architecture allowing safe insertion into active systems without power sequencing requirements for supply voltages.
• Includes deterministic timing resources such as DirectConnect and FastConnect routing paths to minimize signal propagation delays.

Applications

• High-performance logic integration replacing complex programmable logic devices or gate arrays.
• Systems requiring hot-swappable components or cold-sparing capabilities.
• Applications needing secure design protection against reverse engineering via FuseLock technology.
• Interfaces requiring 66 MHz PCI compliance and mixed-voltage level translation.

Procurement Notes

Verify the specific speed grade suffix associated with the FTQ package, as standard speed grades vary by temperature rating. Confirm RoHS compliance status if environmental regulations apply, noting that 'G' indicates lead-free packaging. Ensure the required temperature grade (Commercial, Industrial, Automotive, or Military) matches the application environment, as availability differs across these categories.

Selection Notes

Select this device when 24,000 system gates and 113 user I/Os are sufficient for the design. Consider the -F speed grade if lower performance is acceptable for cost reduction, or higher grades for faster timing. Verify that the 144-pin TQFP package fits the PCB footprint constraints. Check if the specific temperature grade is available for the desired speed grade, as some combinations may be discontinued or limited.

Part Context

This component belongs to the Actel SX-A FPGA family, which uses antifuse technology for nonvolatile configuration. The SX-A series offers high-density logic modules arranged in clusters and superclusters. The A54SX16A represents the mid-range capacity within the family, positioned between the A54SX08A and A54SX32A in terms of logic resources and I/O count.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided datasheet. Designers should consult Microchip Technology for current equivalent offerings or legacy replacement programs, as older speed grades like –3 have been discontinued.