A54SX08-TQ144

Overview

The A54SX08-TQ144 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 operates with supply voltages of 2.5 V, 3.3 V, or 5 V, featuring mixed-voltage operation with 5 V input tolerance. Standard speed grades achieve 250 MHz system performance and 350 MHz internal performance.

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 safe insertion into electrically active systems without requiring specific power sequencing.
• Deterministic timing architecture with DirectConnect and FastConnect routing resources for predictable signal propagation.
• Integrated Boundary Scan Testing (BST) compliant with IEEE Standard 1149.1 (JTAG) for diagnostic verification.

Applications

• Integration of complex CPLD functionality into high-performance single-chip solutions
• Fast counters and state machine implementations requiring deterministic timing
• Data path logic designs needing optimal register/logic mix

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm temperature grade and packaging compliance. The TQ144 designation indicates a 144-pin Thin Quad Flat Pack. Confirm availability status as legacy antifuse products may have limited production runs or discontinuation notices. Ensure design tools support the SX-A family architecture for successful programming.

Selection Notes

Select this component when a nonvolatile FPGA with hot-swap capability and deterministic timing is required. The SX-A architecture suits applications replacing multiple CPLDs or gate arrays. Consider the 113 available I/Os and 768 logic modules for capacity planning. Verify that the 2.5 V/3.3 V/5 V mixed-voltage I/O standards meet system interface requirements.

Part Context

This part belongs to the Actel SX-A family of FPGAs, which are distinguished by their antifuse-based nonvolatile configuration. Unlike volatile SRAM FPGAs, these devices retain their configuration immediately upon power-up without external configuration memory. The SX-A family emphasizes high-speed performance through its unique sea-of-modules architecture and patented interconnect structure.

Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.