A54SX16A-1FGG256M

Overview

The A54SX16A-1FGG256M is a Field Programmable Gate Array from the SX-A family, manufactured by Microchip Technology. It features 24,000 system gates and supports up to 180 user-programmable I/O pins within a 256-pin Fine Pitch Ball Grid Array (FBGA) package. The device operates at a maximum frequency of 263 MHz with a supply voltage range of 2.25 V to 2.75 V. It utilizes 0.22 μm / 0.25 μm CMOS antifuse technology and supports an operating temperature range from -55°C to +125°C.

Feature Summary

• Nonvolatile single-chip solution utilizing 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 such as HCLK, CLKA, and CLKB for deterministic timing and high-speed signal propagation.

Applications

• High-performance digital logic integration requiring nonvolatile configuration.
• Systems requiring hot-swappable interface capabilities.
• Mixed-voltage environments supporting 3.3 V/5 V PCI, 5 V TTL, and 2.5 V LVCMOS2 standards.
• Applications demanding deterministic timing and boundary-scan testing compliance.

Procurement Notes

Verify component authenticity through authorized Microchip distributors or direct manufacturer channels. Confirm that the specific ordering suffix matches the required speed grade, package type, and temperature range. Ensure proper handling procedures are followed due to moisture sensitivity classification. Review current availability status as production lifecycles may affect supply continuity.

Selection Notes

Select this model when 24,000 system gates and 180 I/Os are required in a 256-pin FBGA form factor. Ensure the design accommodates the 2.25 V to 2.75 V supply voltage range. Verify that the -1 speed grade meets the target 263 MHz performance requirements. Consider the military temperature grade (-55°C to +125°C) if environmental conditions necessitate extended operational ranges.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which were originally developed by Actel Corporation before being acquired by Microsemi and subsequently Microchip Technology. The SX-A series is characterized by its antifuse-based architecture, offering high performance and security against reverse engineering. This specific part represents a mid-range capacity device within the family, balancing gate count with pin density.

Replacement Considerations

Direct replacements within the same package and pinout include other speed grades of the A54SX16A series, such as the standard speed variant or faster grades like -2, provided timing constraints allow. Cross-family migration to newer Microchip FPGA architectures requires significant redesign due to architectural differences between antifuse and SRAM-based technologies.

FAQ

What is the programming technology used in the A54SX16A-1FGG256M?

The device uses metal-to-metal programmable antifuse technology fabricated on a 0.22 μm / 0.25 μm CMOS process, providing nonvolatile configuration.

Can the I/Os be powered up or down in any order?

Yes, the SX-A family supports power-up/down friendly operation where VCCA and VCCI do not need to be stable during power transitions and can be powered in any order.

Is the device compliant with IEEE 1149.1 standards?

Yes, all SX-A devices support Boundary-Scan Testing (BST) in compliance with IEEE Standard 1149.1 (JTAG).