A54SX32-1PQ208M

Overview

The A54SX32-1PQ208M is a Field Programmable Gate Array from the Actel SX-A family, manufactured by Microchip Technology. It features 48,000 system gates and 1,452 logic modules within a 208-pin Plastic Quad Flat Pack (PQFP) package. The device operates at a maximum system frequency of 250 MHz with an internal performance of 350 MHz. It supports mixed-voltage I/O standards including 2.5 V, 3.3 V, and 5 V, with 5 V input tolerance. The component utilizes nonvolatile antifuse technology for permanent configuration.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnect elements for permanent configuration without external memory.
• Hot-swap compliant I/Os allowing insertion into active systems without power sequencing requirements or system degradation.
• Deterministic timing architecture featuring DirectConnect and FastConnect routing resources to minimize signal propagation delays.
• Integrated boundary-scan testing capabilities compliant with IEEE Standard 1149.1 (JTAG) for diagnostic verification.

Applications

• High-performance digital logic integration replacing complex CPLDs or gate arrays.
• Systems requiring deterministic timing and fast state machine execution.
• Applications necessitating hot-swappable interface capabilities and mixed-voltage operation.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm temperature grade and packaging compliance. Confirm that the -1 speed grade designation aligns with project timing requirements, as it represents approximately 15% faster performance than the standard grade. Ensure design tools support the legacy SX-A family architecture.

Selection Notes

Select this model when 48,000 system gates and 174 user I/Os are required in a PQFP-208 form factor. The -1 speed grade provides higher performance than the standard version while maintaining compatibility with the SX-A ecosystem. Verify voltage domain requirements, as the device supports 2.5 V, 3.3 V, and 5 V mixed-voltage I/O configurations.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which are fabricated on 0.22 μm / 0.25 μm CMOS antifuse technology. The family offers high reliability and security through its nonvolatile nature, distinguishing it from volatile SRAM-based FPGAs that require external configuration memory.

Replacement Considerations

Direct pin-compatible replacements within the same package and capacity are limited due to the discontinuation of the SX-A line. Consider devices from the PolarFire or IGLOO families for modern equivalents, though architectural differences regarding antifuse versus SRAM technology will require design adaptation.

FAQ

What is the maximum internal clock frequency supported by the A54SX32-1PQ208M?

The device supports an internal clock frequency of up to 350 MHz, enabling fast execution of complex logic functions.

How does the A54SX32-1PQ208M handle power-up sequences for supply voltages?

The device is power-up/down friendly and does not require specific sequencing for supply voltages; VCCA and VCCI can be powered up or down in any order.

Is the A54SX32-1PQ208M compatible with PCI standards?

Yes, the device is 66 MHz PCI compliant and supports configurable I/O for 3.3 V / 5 V PCI standards.