A54SX16A-FG256I

Overview

The A54SX16A-FG256I is a Field Programmable Gate Array from the Actel SX-A family, fabricated using 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 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 standard speed grade with an internal performance capability of 350 MHz. It features three global clock networks and supports mixed-voltage operation for 2.5 V, 3.3 V, and 5 I/Os. The industrial temperature grade (-40°C to +85°C) ensures reliable operation in demanding environments.

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 requiring specific power sequencing.
• Deterministic timing performance enabled by DirectConnect and FastConnect routing resources that minimize signal propagation delays through optimized local interconnects.
• Integrated boundary-scan testing compliance with IEEE Standard 1149.1 (JTAG) for superior diagnostic capabilities and in-system verification.

Applications

• High-performance digital logic integration replacing complex programmable logic devices (CPLDs).
• Fast counters and state machine implementations requiring predictable timing and low capacitance routing.
• Data path logic designs benefiting from high-speed execution and flexible register/logic mix.
• Systems requiring hot-swappable interfaces and mixed-voltage I/O compatibility.

Procurement Notes

Verify the specific ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) as defined in the official Actel SX-A datasheet. Confirm package dimensions match the 256-pin FBGA specification. Ensure design tools support the SX-A family architecture for proper place-and-route implementation.

Selection Notes

Select this component when 24,000 system gates and 180 I/Os are required within a compact FBGA footprint. Consider the SX-A family's nonvolatile nature if external configuration memory must be eliminated. Evaluate the industrial temperature grade suitability against commercial or automotive alternatives based on environmental constraints.

Part Context

This part belongs to the Actel SX-A FPGA family, which offers a sea-of-modules architecture combining register cells and combinatorial cells. The family ranges from 12,000 to 108,000 system gates, providing scalable solutions for various logic densities while maintaining consistent architectural features like antifuse programming and dedicated clock networks.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-referencing should focus on gate count, I/O availability, and package type within the broader SX-A family or compatible Actel product lines.