A54SX32A-BG329M

Overview

The A54SX32A-BG329M is a Field Programmable Gate Array from the SX-A family, featuring 48,000 system gates and 2,880 logic modules. It supports up to 249 user-programmable I/O pins and utilizes 0.22 μm / 0.25 μm CMOS antifuse technology. The device operates with internal clock frequencies up to 350 MHz and delivers 250 MHz system performance. It accommodates mixed-voltage operation at 2.5 V, 3.3 V, and 5.0 V with 5.0 V input tolerance. The component is housed in a 329-pin Plastic Ball Grid Array (PBGA) package and is designated for military temperature grades ranging 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.
• Hot-swap compliant I/Os that tristate during power-up/down without requiring specific supply voltage sequencing.
• Configurable I/O standards supporting 3.3 V/5 V PCI, 5 V TTL, 3.3 V LVTTL, and 2.5 V LVCMOS2 with individually selectable slew rates.
• Deterministic timing architecture with DirectConnect and FastConnect routing resources enabling 100% pin locking and resource utilization.

Applications

• High-performance digital signal processing and data path logic
• 66 MHz PCI compliant interface integration
• Secure hardware designs requiring reverse engineering protection via FuseLock technology

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm package type, speed grade, and temperature range. Ensure compatibility with Actel Designer software versions supporting the SX-A family. Confirm RoHS compliance status as standard packaging may differ from lead-free variants. Validate military-grade specifications if operating in extreme environmental conditions.

Selection Notes

Select this model for applications requiring high-density logic within a compact BGA footprint. The military temperature rating (-55°C to +125°C) makes it suitable for harsh environments. Consider the 329-pin count for sufficient I/O availability. Evaluate the 350 MHz internal performance against system timing requirements. Verify that the design toolchain supports the specific speed grade associated with this part number.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which are known for their deterministic performance and security features. The SX-A series bridges the gap between CPLDs and gate arrays by offering high-speed logic with nonvolatile configuration. Microchip Technology acquired Actel, continuing support for these antifuse-based devices in specialized industrial and defense markets.

Replacement Considerations

Direct replacements within the same package and pinout include other speed grades of the A54SX32A series, such as A54SX32A-1BG329 or A54SX32A-2BG329, provided timing constraints are met. Cross-family migration to newer Microchip FPGA architectures requires significant redesign due to architectural differences.