A54SX16A-TQG144I

Overview

The A54SX16A-TQG144I is a Field Programmable Gate Array from the Actel SX-A family, manufactured by Microchip Technology. It features 24,000 system gates and 1,452 configurable logic blocks within a 144-pin Thin Quad Flat Pack (TQFP) package. The device supports up to 113 user-programmable I/O pins and operates at a maximum system frequency of 227 MHz with an internal performance speed grade of approximately 15% faster than standard. It utilizes 0.22 μm / 0.25 μm CMOS antifuse technology and requires a 2.5 V supply voltage. The 'I' suffix designates an industrial temperature range of -40°C to +85°C.

Feature Summary

• Nonvolatile single-chip solution using metal-to-metal programmable antifuse interconnect elements for permanent low-impedance connections.
• Supports mixed-voltage operation including 2.5 V, 3.3 V, and 5 V I/O standards with 5 V input tolerance and drive strength.
• Hot-swap compliant I/Os allowing safe insertion into electrically active systems without degrading host reliability.
• Includes dedicated clock networks (HCLK, CLKA, CLKB) and boundary-scan testing compliance with IEEE Standard 1149.1.

Applications

• High-performance digital logic integration requiring deterministic timing and fast pin-to-pin propagation.
• Systems requiring hot-swappable capabilities or power-up/down sequencing flexibility.
• Industrial control applications operating within the specified industrial temperature range.
• PCI-compliant designs supporting 66 MHz PCI interfaces.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type, speed grade, and temperature rating. Confirm RoHS compliance status as packaging options may vary. Check for end-of-life or limited availability notices from authorized distributors, as this component belongs to an established FPGA family that may have transitioned production statuses.

Selection Notes

Select this part when 24,000 system gates and 113 I/Os are required in a TQFP-144 form factor. Ensure the design accommodates the 2.5 V core voltage while utilizing the flexible I/O banks for 3.3 V or 5 V signaling. Consider the industrial temperature grade if ambient conditions exceed commercial limits. Verify that the antifuse programming infrastructure is available, as configuration is non-reprogrammable once executed.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which are characterized by their high-density antifuse technology and robust routing architecture. The SX-A series was designed to replace complex CPLDs and gate arrays by offering superior performance and lower power consumption. The A54SX16A variant specifically targets mid-range logic density requirements within this portfolio.

Replacement Considerations

Direct functional replacements within the same package and pinout are not explicitly listed in the provided documentation. Designers should evaluate other members of the SX-A family, such as the A54SX08A or A54SX32A, if gate count adjustments are permissible. Cross-family migration to newer Microchip FPGA architectures may require significant schematic and layout redesign due to differences in I/O structures and programming technologies.