A54SX32-BG329

Overview

The A54SX32-BG329 is an SX-A family Field Programmable Gate Array (FPGA) from Microchip Technology, fabricated using 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 48,000 system gates and supports up to 249 user-programmable I/O pins within a 329-pin Plastic Ball Grid Array (PBGA) package. The device operates with supply voltages of 2.5 V, 3.3 V, or 5 V, featuring mixed-voltage I/O capability with 5 V input tolerance. Standard speed grade devices achieve 250 MHz system performance and 350 MHz internal clock frequencies. The architecture includes dedicated flip-flops, combinatorial cells, and segmented routing resources for deterministic timing.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnects for permanent configuration without external memory.
• Hot-swap compliant I/Os allowing insertion into active systems without power sequencing requirements for supply voltages.
• Support for multiple voltage standards including 3.3 V/5 V PCI, 5 V TTL, 3.3 V LVTTL, and 2.5 V LVCMOS2 with individually configurable slew rates.
• Integrated Boundary-Scan Testing (BST) compliant with IEEE Standard 1149.1 (JTAG) for diagnostic and verification capabilities.

Applications

• High-performance logic integration replacing complex CPLDs or gate arrays
• Systems requiring hot-swappable interface capabilities
• Designs needing mixed-voltage I/O operation with 5 V tolerance

Procurement Notes

Verify the specific suffix 'B' against official Microchip documentation, as standard commercial temperature grades are typically denoted by blank or 'C'. Confirm current manufacturing status, as Actel SX-A products may be discontinued or subject to PCNs. Ensure compatibility with legacy design tools if migrating existing projects.

Selection Notes

Select this component when 48,000 system gates and 249 I/Os are required in a BGA package. Consider the -2 speed grade if higher frequency performance than standard is needed. Verify thermal requirements for the PBGA-329 package and ensure the design utilizes the nonvolatile antifuse architecture benefits over volatile SRAM FPGAs.

Part Context

This part belongs to the Actel SX-A family, which was acquired by Microchip Technology. The SX-A series is characterized by its antifuse technology, offering high reliability and security against reverse engineering. The BG329 package indicates a 329-pin Plastic Ball Grid Array form factor suitable for surface mount applications.

Replacement Considerations

Check for A54SX32A variants with different speed grades (-1, -2) or packages (FG256). Verify if newer Microchip FPGA families offer pin-compatible or functionally equivalent replacements with updated process nodes.