A54SX08-2TQG176

Overview

The A54SX08-2TQG176 is a Field Programmable Gate Array from the Microsemi SX-A family, utilizing antifuse technology. It features 12,000 system gates and 768 logic modules. The device operates within a voltage range of 2.5 V to 3.6 V and supports mixed-voltage I/O standards including 3.3 V PCI, 5 V TTL, and 2.5 V LVCMOS2. It provides up to 113 user-programmable I/O pins and includes three global clock networks. The component is housed in a 176-pin Thin Quad Flat Pack (TQFP) package with a lead count of 176.

Feature Summary

• Supports hot-swap compliant I/Os allowing operation during power-up/down without supply sequencing requirements.
• Features deterministic timing through unique local routing resources like DirectConnect and FastConnect for predictable signal propagation.
• Includes Actel Secure Programming Technology with FuseLock to prevent reverse engineering and design theft.
• Provides boundary-scan testing capabilities compliant with IEEE Standard 1149.1 (JTAG).

Applications

• Integration of 66 MHz PCI compliant designs
• High-performance state machines and fast counters
• Data path logic requiring deterministic timing

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm temperature grade and packaging compliance. Confirm that the -2 speed grade designation aligns with project performance requirements. Ensure compatibility with existing PCB footprints for the 176-pin TQFP package. Check for RoHS compliance status if required by environmental regulations.

Selection Notes

Select this model when 12,000 system gates are sufficient for the design complexity. The -2 speed grade offers approximately 25% faster performance than standard grades. Verify that the 176-pin TQFP package meets board space constraints. Ensure the design utilizes the available global clocks and I/O standards supported by the SX-A architecture.

Part Context

This component belongs to the SX-A family of FPGAs, which are fabricated on 0.22 μm / 0.25 μm CMOS antifuse technology. The family provides nonvolatile, single-chip solutions designed for low-power and high-performance applications. The A54SX08 variant represents the entry-level capacity within this series, offering a balance of logic density and pin availability.

Replacement Considerations

A54SX08A-2TQG176I

FAQ

What is the maximum internal clock frequency for the A54SX08-2TQG176?

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

How does the DirectConnect feature improve performance?

DirectConnect provides a hardwired signal path between a C-cell and its neighboring R-cell within a SuperCluster, requiring no programmable interconnection and achieving a maximum routing delay of less than 0.1 ns.

Is the A54SX08-2TQG176 hot-swappable?

Yes, the I/Os are configured to be hot-swappable, with the exception of 3.3 V PCI configurations. During power-up or down, all I/Os are tristated.