A54SX08-2TQG176I

Overview

The Microsemi A54SX08-2TQG176I is a nonvolatile Field Programmable Gate Array (FPGA) from the SX-A family, fabricated on 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 12,000 system gates and supports mixed-voltage operation at 2.5 V, 3.3 V, and 5 V with 5 V input tolerance. The device features 113 user-programmable I/O pins within a 176-pin Thin Quad Flat Pack (TQFP) package. It operates within an industrial temperature range of -40°C to +85°C and achieves a maximum system performance frequency of 250 MHz.

Feature Summary

• Supports hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements.
• Includes Actel Secure Programming Technology with FuseLock to prevent reverse engineering and design theft.
• Features Boundary-Scan Testing compliance with IEEE Standard 1149.1 for superior diagnostic capabilities.
• Provides deterministic timing through unique local routing resources like DirectConnect and FastConnect.

Applications

• Industrial control systems requiring high reliability and deterministic logic execution.
• Medical imaging equipment designs needing secure, nonvolatile configuration solutions.
• Aerospace and defense applications utilizing ruggedized FPGA architectures.

Procurement Notes

Verify the specific ordering suffix 'I' confirms the Industrial temperature grade (-40°C to +85°C). Confirm the '2' speed grade indicates approximately 25% faster performance than standard. Ensure the TQG176 designation matches the required 176-pin Thin Quad Flat Pack physical footprint for PCB layout compatibility.

Selection Notes

Select this component when a single-chip nonvolatile solution is required to eliminate external configuration memory. Consider the 113 available I/Os against system interface needs. Evaluate the 250 MHz system clock capability against timing constraints. Verify that the 176-pin TQFP package fits the mechanical enclosure and assembly process specifications.

Part Context

This part belongs to the Actel SX-A family of FPGAs, which utilizes metal-to-metal programmable antifuse interconnect elements. The architecture employs a sea-of-modules design with register cells and combinatorial cells arranged in clusters. This family is known for low power consumption and high performance relative to its gate count.

Replacement Considerations

Compatible variants within the same package include the A54SX08-1TQG176I (Standard Speed Grade) and the A54SX08-TQG176I (Blank Speed Grade). These parts share identical pinouts and logical resources but differ in propagation delay characteristics.