A54SX32A-TQG176M

Overview

The A54SX32A-TQG176M is a Field Programmable Gate Array from the Actel SX-A family, fabricated using 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 48,000 system gates and 2,880 configurable logic blocks (CLBs). The device supports up to 249 user-programmable I/O pins and features 1,980 dedicated flip-flops. It operates with internal clock frequencies up to 350 MHz and delivers 250 MHz system performance. The component utilizes a Thin Quad Flat Pack (TQFP) package with 176 leads.

Feature Summary

• Supports mixed-voltage operation across 2.5 V, 3.3 V, and 5 V domains with 5 V input tolerance.
• Features hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements.
• Includes deterministic timing architecture with DirectConnect and FastConnect routing for predictable signal propagation.
• Integrates IEEE 1149.1 Boundary-Scan Testing capabilities for in-system diagnostic verification.

Applications

• Integration of complex CPLD and FPGA functions into single-chip solutions
• High-speed data path logic and fast counters requiring deterministic timing
• Systems requiring secure programming to prevent reverse engineering

Procurement Notes

Verify the specific speed grade suffix associated with the TQG176M designation against official Microchip documentation to confirm performance characteristics. Confirm that the ordering suffix strictly defines packaging or temperature variations as per the manufacturer's standard nomenclature. Ensure compliance with relevant environmental directives applicable to the intended deployment region.

Selection Notes

Select this device when designs require high-density logic within a 176-pin form factor. Consider the SX-A family's nonvolatile antifuse architecture for applications needing instant power-up functionality. Evaluate the available global clock resources and I/O flexibility against interface requirements before finalizing the component choice.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which are designed for low-power, high-performance applications. The family utilizes metal-to-metal programmable antifuse interconnect elements to provide permanent, low-impedance connections. This architecture allows for 100% resource utilization and pin locking, distinguishing it from volatile configuration devices.

Replacement Considerations

Consult official Microchip discontinuation notices for confirmed substitute part numbers. Verify compatibility regarding pin counts, gate densities, and package dimensions before implementing any alternative components in existing designs.