A54SX16-TQG176

Overview

The A54SX16-TQG176 is a Field Programmable Gate Array from the SX-A family, manufactured by Microchip Technology. It features 24,000 system gates and 1,452 logic modules within a 176-pin Thin Quad Flat Pack (TQFP) package. The device supports up to 360 user-programmable I/O pins and utilizes 0.22 μm / 0.25 μm CMOS antifuse technology. It offers 250 MHz system performance and 350 MHz internal clock speeds. The architecture includes dedicated flip-flops, global clocks, and boundary-scan testing compliance with IEEE Standard 1149.1.

Feature Summary

• Supports hot-swap compliant I/Os for safe insertion into active systems without power sequencing requirements.
• Provides deterministic, user-controllable timing through patented metal-to-metal programmable antifuse interconnect elements.
• Includes Actel Secure Programming Technology with FuseLock™ to prevent reverse engineering and design theft.

Applications

• High-performance digital signal processing requiring fast execution of complex logic functions.
• Systems requiring nonvolatile, single-chip solutions with integrated configuration capabilities.
• Applications needing mixed-voltage operation with support for 3.3 V, 5 V, and 2.5 V I/O standards.

Procurement Notes

Verify the specific speed grade suffix associated with the TQG176 package, as standard speed grades may differ from faster variants. Confirm temperature range availability, noting that commercial, industrial, and military options exist for this package type. Ensure the ordering code matches the required pin count and package height specifications defined in the official datasheet.

Selection Notes

Select this model when 24,000 system gates are sufficient for the design complexity. Consider the 176-pin TQFP package if board space constraints favor surface-mount thin profiles over ball grid arrays. Evaluate the need for hot-swap capabilities and secure antifuse programming before choosing this nonvolatile FPGA over volatile alternatives.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which were originally developed by Actel Corporation before being acquired by Microchip Technology. The SX-A series is characterized by its use of antifuse technology, providing permanent programming without the need for external configuration memory. This family bridges the gap between CPLDs and gate arrays in terms of density and performance.

Replacement Considerations

Direct replacements within the same package and pinout include other A54SX16A variants with different speed grades or temperature ratings, such as A54SX16A-TQG176-I. Cross-family migration to newer Microchip PolarFire or IGLOO devices requires significant schematic and firmware redesign due to architectural differences.