A54SX16A-1FGG256I

Overview

The A54SX16A-1FGG256I is an industrial-grade FPGA from the SX-A family, featuring 24,000 system gates and 180 user I/Os in a 256-pin Fine Pitch Ball Grid Array package. It operates at a maximum system frequency of 263 MHz with a 2.5 V supply voltage range of 2.25 V to 2.75 V. The device supports -40°C to +85°C operation and utilizes nonvolatile antifuse technology for permanent configuration.

Feature Summary

• Nonvolatile single-chip solution using metal-to-metal programmable antifuse interconnect elements
• Hot-swap compliant I/Os allowing power-up/down without sequencing requirements
• Configurable I/O supporting mixed-voltage operation including 3.3 V/5 V PCI, 5 V TTL, and 2.5 V LVCMOS2
• Actel Secure Programming Technology with FuseLock prevents reverse engineering

Applications

• High-performance logic integration requiring deterministic timing
• Systems requiring hot-swappable interface capabilities
• Applications needing secure, nonvolatile configuration without external bitstream memory

Procurement Notes

Verify component authenticity through authorized Microchip channels due to discontinuation status. Confirm RoHS compliance packaging suffixes if required. Check for specific manufacturing change notifications affecting pinout or electrical characteristics prior to final design freeze.

Selection Notes

Select this part for designs requiring 24,000 system gates with industrial temperature stability. Ensure PCB layout accommodates the 1.0 mm FBGA pitch. Verify that the 263 MHz speed grade meets timing constraints for the target application logic complexity.

Part Context

Part of the Actel SX-A family of FPGAs fabricated on 0.22 μm/0.25 μm CMOS process. The SX-A series provides high-density logic with low power consumption and robust security features compared to earlier antifuse devices.

Replacement Considerations

No direct public substitute identified. Consider Microchip RTG4 or PolarFire families for modern equivalents, though architectural differences exist.

FAQ

What is the maximum internal clock frequency?

The SX-A family supports internal clock frequencies up to 350 MHz.

How does the device handle unused I/O pins?

Unused I/Os are configured as tristate outputs by default to ensure maximum flexibility during board design.

Is boundary scan testing supported?

Yes, all SX-A devices are IEEE Standard 1149.1 (JTAG) compliant for boundary-scan testing.