A54SX08-2TQ144

Overview

The A54SX08-2TQ144 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 12,000 system gates and 768 logic modules (comprising 512 combinatorial cells and 256 dedicated flip-flops). The device supports up to 113 user-programmable I/O pins within a 144-pin Thin Quad Flat Pack (TQFP) package. It features a maximum internal clock frequency of 350 MHz and a system performance speed grade of 250 MHz. The component operates with mixed-voltage support for 2.5 V, 3.3 V, and 5 V supplies.

Feature Summary

• Supports hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements.
• Includes unique in-system diagnostic capabilities via Silicon Explorer II and boundary-scan testing compliant with IEEE Standard 1149.1.
• Features Actel Secure Programming Technology with FuseLock to prevent reverse engineering and design theft.
• Provides deterministic, user-controllable timing through patented metal-to-metal programmable antifuse interconnect elements.

Applications

• Integration of low-power, high-performance designs requiring single-chip solutions.
• Replacement of multiple complex programmable logic devices (CPLDs) in cost-sensitive applications.
• Implementation of fast counters, state machines, and data path logic utilizing DirectConnect and FastConnect routing resources.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm temperature grade and packaging compliance. Ensure the selected variant matches the required operational environment and lead-free specifications. Cross-reference the part number with current availability status as legacy antifuse products may have limited supply chains or end-of-life notifications.

Selection Notes

Select this model when 12,000 system gates and 768 logic modules are sufficient for the target design complexity. The -2 speed grade offers approximately 25% faster performance than the standard grade. Confirm that the 144-pin TQFP package fits the PCB footprint constraints and that the 113 available I/O pins meet interface requirements. Verify voltage domain compatibility for mixed 2.5 V, 3.3 V, and 5 V operation.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which utilizes nonvolatile antifuse technology. The family includes higher capacity devices such as the A54SX16A, A54SX32A, and A54SX72A. The SX-A architecture is characterized by its sea-of-modules organization and dedicated global clock networks, distinguishing it from SRAM-based FPGAs that require external configuration memory.

Replacement Considerations

Direct pin-compatible replacements within the same package and speed grade are not explicitly listed in the provided datasheet. Designers should evaluate other members of the SX-A family, such as the A54SX16A, if increased gate count is acceptable, while verifying package and electrical parameter compatibility.