A54SX32-2BG329I

Overview

The A54SX32-2BG329I is a Field Programmable Gate Array from the SX-A family, manufactured by Microchip Technology. It features 48,000 system gates and 2,880 configurable logic blocks (CLBs). The device supports up to 249 user-programmable I/O pins and operates with internal clock frequencies up to 350 MHz. It utilizes 0.22 μm / 0.25 μm CMOS antifuse technology and supports 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 rated for industrial temperature ranges (-40°C to +85°C).

Feature Summary

• Supports hot-swap compliant I/Os allowing insertion into active systems without power sequencing requirements.
• Provides deterministic, user-controllable timing through patented metal-to-metal programmable antifuse interconnect elements.
• Includes boundary-scan testing capabilities compliant with IEEE Standard 1149.1 (JTAG) for diagnostic verification.
• Features Actel Secure Programming Technology with FuseLock to prevent reverse engineering and design theft.

Applications

• 66 MHz PCI compliant single-chip integration solutions.
• High-performance state machines and fast counters requiring low propagation delays.
• Data path logic applications utilizing DirectConnect and FastConnect routing resources.

Procurement Notes

Verify the specific speed grade suffix '2' indicates approximately 25% faster performance than standard speed. Confirm the 'I' suffix denotes the industrial temperature range of -40°C to +85°C. Ensure the BG329 designation matches the required 329-pin PBGA footprint. Check current availability status as older SX-A series components may have discontinuation notices.

Selection Notes

Select this model when 48,000 system gates and 249 I/Os are required within a 329-pin BGA form factor. Choose the -2 speed grade if higher frequency performance near 350 MHz internal clocks is necessary compared to standard grades. Verify that the 0.22/0.25 micron process technology aligns with the target voltage and power constraints.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which transitioned to Microchip Technology following acquisition. The SX-A line is characterized by its nonvolatile antifuse architecture, offering permanent configuration without external memory. It serves as a bridge between CPLD density and gate array performance, emphasizing deterministic timing and high reliability.

Replacement Considerations

Direct pin-compatible replacements within the same package and speed grade are limited due to the discontinued nature of the SX-A antifuse platform. Consider migrating to modern Microchip PolarFire or IGLOO2 families for equivalent functionality, though these require significant schematic and layout redesigns.