A54SX32A-1BG329

Overview

The A54SX32A-1BG329 is a Field Programmable Gate Array from the SX-A family, fabricated using 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 48,000 system gates and 2,880 logic modules (CLBs). The device supports up to 249 user-programmable I/O pins and features 1,080 dedicated flip-flops with a maximum of 1,980 registers. It operates at a system performance frequency of 250 MHz with an internal clock capability of 350 MHz. The component utilizes a 329-pin Plastic Ball Grid Array (PBGA) package with a 1.27 mm ball pitch.

Feature Summary

• Supports mixed-voltage operation across 2.5 V, 3.3 V, and 5 V domains with 5 V input tolerance and drive strength.
• Features hot-swap compliant I/Os allowing power-up/down without voltage sequencing requirements.
• Includes deterministic timing architecture with DirectConnect and FastConnect routing for predictable signal propagation.
• Integrates Actel Secure Programming Technology with FuseLock to prevent reverse engineering.

Applications

• 66 MHz PCI compliant single-chip solutions
• High-performance state machines and fast counters
• Data path logic requiring deterministic timing

Procurement Notes

Verify the specific speed grade suffix '1' indicates approximately 15% faster performance than the standard speed grade. Confirm the 'BG' package designation corresponds to the 1.27 mm Plastic Ball Grid Array format. Ensure the temperature grade suffix matches the required operational range, as blank typically denotes commercial grade. Cross-reference the ordering information table to validate pin counts and resource allocations for this specific part number.

Selection Notes

Select this device when 48,000 system gates and 249 I/Os are required in a 329-pin BGA form factor. The -1 speed grade offers higher performance than the standard grade but lower than the -2 grade. Consider the nonvolatile antifuse architecture if security against reverse engineering is a priority. Verify that the target application supports the 2.5 V core voltage and mixed I/O standards provided by the SX-A family.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which utilizes metal-to-metal programmable antifuse interconnect elements. The family includes devices ranging from 12,000 to 108,000 system gates. The A54SX32A variant specifically targets designs needing moderate logic density with high-speed performance capabilities and robust I/O flexibility.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The SX-A family has been superseded by newer Microchip FPGA technologies; consult official Microchip transition guides for modern equivalents.