A54SX08A-1TQ100

Overview

The A54SX08A-1TQ100I is an industrial-grade Field Programmable Gate Array (FPGA) from the SX-A family, manufactured by Microchip Technology. It features 12,000 system gates and 768 logic modules within a 100-pin Thin Quad Flat Pack (TQFP) package. The device supports up to 81 user I/Os and operates at a maximum frequency of 278 MHz with a -1 speed grade. It utilizes 0.22 μm / 0.25 μm CMOS antifuse technology and supports mixed-voltage operation ranging from 2.25 V to 5.25 V. The component is designed for applications requiring deterministic timing, hot-swap compliance, and robust security against reverse engineering.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnect elements for permanent configuration without external memory.
• Hot-swap compliant I/O architecture allowing safe insertion into electrically active systems without degrading host reliability or causing damage.
• Configurable I/O support enabling mixed-voltage operation across 3.3 V, 5 V, and 2.5 V standards with individual slew rate control.

Applications

• Industrial control systems requiring deterministic timing and high-speed logic processing
• Embedded controllers and specialized processors in harsh environments
• Prototyping complex digital designs previously requiring gate arrays

Procurement Notes

Verify the specific ordering suffix to confirm the package type and temperature grade. The 'I' suffix indicates Industrial temperature range (-40°C to +85°C), while 'TQ' denotes the 100-pin TQFP package. Confirm RoHS compliance status as packaging options may vary. Ensure design tools are compatible with the SX-A family architecture before procurement.

Selection Notes

Select this model when 12,000 system gates and 81 user I/Os are sufficient for the design requirements. The -1 speed grade offers approximately 15% faster performance than the standard grade. Consider the TQFP package if surface-mount assembly with fine-pitch leads is preferred over ball grid array options. Verify that the 2.25 V to 5.25 V supply voltage range aligns with the target system power rails.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which were originally developed by Actel Corporation and later acquired by Microchip Technology. The SX-A series is characterized by its antifuse-based nonvolatile architecture, offering high performance and security. The A54SX08A variant represents the entry-level capacity within the family, providing a cost-effective solution for moderate complexity logic applications.

Replacement Considerations

Direct pin-compatible replacements within the same package and speed grade are limited due to the proprietary antifuse architecture. Alternative devices from other manufacturers would require significant schematic and layout redesign. Check for updated Microchip part numbers with revised suffixes for packaging or environmental compliance changes.