A54SX16-TQG176I

Overview

The A54SX16-TQG176I is an industrial-grade Field Programmable Gate Array from the Actel SX-A family, featuring 24,000 system gates and a 176-pin Thin Quad Flat Pack (TQFP) package. It operates within a voltage range of 2.25 V to 2.75 V for core logic and supports mixed-voltage I/O standards including 3.3 V and 5 V. The device delivers a maximum system performance frequency of 250 MHz with internal clock capabilities up to 350 MHz. It includes three global clock networks and supports boundary-scan testing compliant with IEEE Standard 1149.1.

Feature Summary

• Supports hot-swappable I/O configurations allowing safe insertion into active systems without power sequencing requirements.
• Utilizes metal-to-metal antifuse technology providing nonvolatile configuration and inherent protection against reverse engineering.
• Features DirectConnect and FastConnect routing resources enabling deterministic timing and high-speed signal propagation.

Applications

• Industrial control systems requiring deterministic timing and robust I/O interfaces
• High-performance logic integration replacing complex programmable logic devices
• Secure embedded applications utilizing antifuse-based design protection

Procurement Notes

Verify component authenticity through authorized Microchip Technology distributors or direct channels. Confirm that the specific ordering suffix matches the required temperature grade and package variant. Ensure compliance with relevant environmental regulations such as RoHS if applicable to the manufacturing batch. Request official datasheets and certification documents prior to finalizing acquisition.

Selection Notes

Select this model when industrial temperature operation (-40°C to +85°C) is required alongside 176-pin surface mount packaging. Compare resource utilization against the A54SX08A and A54SX32A variants to ensure optimal cost and pin count alignment. Verify that the 250 MHz system speed meets the target application's timing constraints before committing to the standard speed grade.

Part Context

This component belongs to the Actel SX-A FPGA family, which utilizes 0.22 μm / 0.25 μm CMOS antifuse technology. The SX-A series is designed for low-power, high-performance applications, offering a single-chip solution with mixed-voltage I/O support. It serves as a bridge between CPLDs and gate arrays, providing flexible logic resources with permanent configuration capabilities.

Replacement Considerations

Direct functional replacements within the same package and speed grade are limited due to the discontinuation of certain speed grades. Consider the A54SX16A-1TQG176I for faster performance or the A54SX16A-TQG176C for commercial temperature ranges. Cross-family migration to ProASIC3 may require significant redesign.