A54SX32-1BG329

Overview

The A54SX32-1BG329 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.

Feature Summary

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

Applications

• 66 MHz PCI Compliant System Integration
• Low-Power High-Performance Logic Designs
• Single-Chip CPLD Replacement Solutions

Procurement Notes

Verify the specific speed grade suffix associated with the model number, as the base part number may correspond to standard speed while the '-1' indicates an approximately 15% faster performance tier. Confirm that the PBGA329 package matches the target PCB footprint and thermal requirements. Ensure compliance with RoHS directives if required by the end application, noting that packaging options vary by manufacturer lot.

Selection Notes

Select this device when designs require high-density logic integration with deterministic timing characteristics. The SX-A architecture allows for 100% resource utilization and pin locking, facilitating concurrent PCB development. Consider the mixed-voltage I/O capabilities if interfacing with multiple voltage domains. Verify that the antifuse nonvolatile nature aligns with the security and configuration persistence needs of the system.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which are fabricated using antifuse technology. The family includes devices ranging from 12,000 to 108,000 system gates. The A54SX32A variant specifically offers 48,000 system gates, positioning it between the smaller A54SX16A and larger A54SX72A models in terms of capacity and I/O count.

Replacement Considerations

Direct replacements within the same package and pinout include other speed grades of the A54SX32A series, such as the standard speed version or the -2 speed grade. Cross-family migration to newer Microchip FPGA architectures requires schematic redesign due to architectural differences.

FAQ

What is the maximum internal clock frequency for the A54SX32A?

The SX-A family devices support internal clock frequencies up to 350 MHz.

Does the A54SX32-1BG329 support hot-swapping?

Yes, the I/Os are configured to be hot-swappable, with the exception of 3.3 V PCI configurations.

How many global clocks are available on the A54SX32A?

The A54SX32A device provides two routed global clocks (CLKA, CLKB) and one hardwired clock (HCLK).