A54SX08-1TQ144

Overview

The A54SX08-1TQ144 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 and achieves a maximum internal clock frequency of 350 MHz, delivering 250 MHz system performance.

Feature Summary

• Utilizes metal-to-metal programmable antifuse interconnects for permanent, low-impedance connections that ensure deterministic timing and high-speed signal propagation.
• Features hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements for supply voltages.
• Supports mixed-voltage operation across 2.5 V, 3.3 V, and 5 V domains with 5 V input tolerance and drive strength capabilities.
• Includes IEEE 1149.1 (JTAG) boundary-scan testing compliance for superior in-system diagnostic and verification capabilities.

Applications

• Integration of complex CPLD functionality into single-chip solutions requiring high performance.
• Designs necessitating deterministic timing and user-controllable delay characteristics.
• Applications requiring secure programming to prevent reverse engineering via FuseLock technology.

Procurement Notes

Verify the specific speed grade suffix associated with the part number against official Microchip documentation to confirm timing performance levels. Confirm temperature range specifications match the application environment requirements. Ensure compatibility with Actel Designer software versions for proper place-and-route implementation. Check for any product discontinuance notifications or lifecycle status updates prior to finalizing procurement plans.

Selection Notes

Select this component when design requirements align with the 12,000 gate capacity and 113 I/O limit of the A54SX08A architecture. Consider the TQFP-144 package constraints regarding board space and thermal dissipation. Evaluate the need for antifuse non-volatility versus reprogrammable technologies if design iterations are expected post-manufacturing. Verify voltage domain requirements to ensure the configurable I/O standards meet interface specifications.

Part Context

This model belongs to the Actel SX-A FPGA family, which utilizes antifuse technology for non-volatile configuration. The 'A54SX08' designation indicates the 12,000 system gate capacity tier within the series. The '-1' suffix denotes a specific speed grade offering approximately 15% faster performance than the standard speed variant. The 'TQ144' specifies the 144-pin Thin Quad Flat Pack physical package type.

Replacement Considerations

Consult official Microchip cross-reference guides for verified equivalent parts. Note that speed grades may vary between standard, -1, and -2 variants; verify timing compatibility before substitution. Package pinouts must be confirmed identical for direct replacement. Legacy support status should be reviewed as older antifuse devices may have limited manufacturing availability.