A54SX16A-1FGG256

Overview

The A54SX16A-1FGG256 is a Field Programmable Gate Array from the SX-A family, featuring 24,000 system gates and 180 user-programmable I/O pins. It utilizes 0.22 μm / 0.25 μm CMOS antifuse technology with a 2.5 V core voltage (operating range 2.25 V to 2.75 V). The device operates at a maximum frequency of 263 MHz and supports mixed-voltage I/O standards including 3.3 V PCI, 5 V TTL, and 2.5 V LVCMOS2. It is housed in a 256-pin Fine Pitch Ball Grid Array package and supports an industrial temperature range.

Feature Summary

• Nonvolatile single-chip solution using metal-to-metal programmable antifuse interconnect elements for permanent low-impedance connections.
• Hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements for supply voltages.
• Configurable weak-resistor pull-up or pull-down capabilities for I/O pins during power-up to ensure deterministic states.
• Individual output slew rate control on falling edges and support for multiple I/O standards within mixed-voltage environments.

Applications

• High-performance logic integration requiring deterministic timing and fast signal propagation.
• Systems requiring hot-swappable interface capabilities and cold-sparing redundancy.
• Designs needing secure implementation with protection against reverse engineering via FuseLock technology.

Procurement Notes

Verify the specific ordering suffix 'M' against official Microchip documentation to confirm packaging and environmental compliance details. Confirm current availability status as distribution channels may list limited stock or end-of-life conditions. Ensure the supplier provides valid traceability documents for the antifuse technology component.

Selection Notes

Select this model when 24,000 system gates and 180 I/Os are required within a 256-pin FBGA footprint. Choose the '-1' speed grade for performance approximately 15% faster than standard. Verify that the application environment aligns with the specified operating temperature range and voltage constraints for the SX-A architecture.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which are fabricated on high-voltage twin-well CMOS process technology. The family offers varying capacities from 12,000 to 108,000 system gates. The A54SX16A variant specifically targets designs needing moderate gate counts with high-speed internal clocking capabilities up to 350 MHz.

Replacement Considerations

Consult official Microchip discontinuance notifications for authorized replacements. Cross-reference pinouts and resource counts with other SX-A devices such as the A54SX32A or A54SX08A if capacity adjustments are permissible. Verify software toolchain compatibility for any alternative antifuse-based FPGAs.