A54SX32-1PQG208M

Overview

The A54SX32-1PQG208M is a nonvolatile Field Programmable Gate Array from the Actel SX-A family, fabricated on 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 208-pin Plastic Quad Flat Pack (PQFP) package. The device operates at a maximum system frequency of 250 MHz with internal clock performance reaching 350 MHz. It features three global clock networks and supports mixed-voltage operation for 2.5 V, 3.3 V, and 5 V I/Os. The component is rated for military temperature grades (-55°C to +125°C) and includes IEEE 1149.1 Boundary-Scan Testing compliance.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnect elements for permanent configuration without external memory.
• Hot-swap compliant I/O architecture allowing safe insertion into electrically active systems without power sequencing requirements.
• Deterministic timing performance enabled by patented DirectConnect and FastConnect routing resources that minimize signal propagation delays.
• Integrated security features including FuseLock technology to prevent reverse engineering and unauthorized design access.

Applications

• High-performance digital logic integration replacing complex CPLDs or gate arrays
• Systems requiring deterministic timing and fast state machine execution
• Military and aerospace applications necessitating wide temperature range and radiation tolerance

Procurement Notes

Verify the specific ordering suffix against current manufacturer documentation to confirm package type, speed grade, and environmental rating. Confirm availability status as legacy components may have limited supply or discontinuation notices. Ensure compatibility with existing PCB footprints and programming tools before procurement.

Selection Notes

Select this model for designs requiring high-density logic in a PQFP package with military-grade temperature specifications. Consider the fixed antifuse nature of the device which prevents reprogramming once configured. Evaluate pin count requirements against the 249 I/O limit and verify voltage domain compatibility for mixed 2.5V/3.3V/5V interfaces.

Part Context

This part belongs to the Actel SX-A family of FPGAs, characterized by its antifuse-based nonvolatile architecture. The SX-A series was designed to offer high performance and low power consumption compared to previous generation devices. The A54SX32 variant specifically targets mid-range capacity applications within this family.

Replacement Considerations

Direct replacements are not available due to the discontinued status of the SX-A family. Designers should evaluate newer Microchip FPGA families such as ProASIC3L or IGLOO2 for functional equivalents, noting differences in architecture and toolchain support.

FAQ

What is the maximum internal clock frequency supported by the A54SX32?

The A54SX32 supports internal clock frequencies up to 350 MHz.

Does the A54SX32 support hot-swapping?

Yes, the I/Os are configured to be hot-swappable, except for 3.3 V PCI configurations.

How many global clock networks are available in the A54SX32?

The A54SX32 provides three global clock networks: one hardwired HCLK and two routed clocks (CLKA and CLKB).