A54SX16-VQ100

Overview

The A54SX16-VQ100 is a Field Programmable Gate Array from the Microsemi SX-A family, fabricated using 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 24,000 system gates and 1,452 logic modules within a 100-pin Thin Quad Flat Pack (TQFP) package. The device supports mixed-voltage I/O operation at 2.5 V, 3.3 V, and 5 V with 5 V input tolerance. Key specifications include up to 81 user-programmable I/Os, three global clock networks, and compliance with IEEE Standard 1149.1 for boundary-scan testing.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnect elements for permanent configuration without external memory.
• Hot-swap compliant I/O architecture allowing safe insertion into electrically active systems without degrading host reliability or requiring specific voltage sequencing.
• Deterministic timing performance enabled by DirectConnect and FastConnect routing resources that minimize signal propagation delays through optimized local interconnects.

Applications

• High-performance digital logic integration replacing complex programmable logic devices (CPLDs).
• Systems requiring deterministic timing and pin-locking capabilities for concurrent PCB development.
• Applications necessitating secure design protection against reverse engineering via FuseLock technology.

Procurement Notes

Verify the exact speed grade suffix associated with the base part number, as standard commercial variants typically utilize specific alphanumeric codes (e.g., -1, -2) rather than blank suffixes in official ordering matrices. Confirm RoHS compliance status if lead-free packaging is required for assembly processes. Ensure the selected temperature grade matches the operational environment constraints of the target application.

Selection Notes

Select this component when a nonvolatile FPGA with high-speed internal clocking up to 350 MHz is required. Evaluate the 100-pin TQFP package availability against board space constraints and thermal dissipation requirements. Consider the 24,000 gate capacity relative to design complexity and verify that the 81 available user I/Os meet interface requirements for the specific system topology.

Part Context

This device belongs to the Actel SX-A family of FPGAs, which are characterized by their antifuse-based nonvolatile architecture. The family spans from 12,000 to 108,000 system gates, offering scalable logic density. The SX-A series is distinguished by its 'sea-of-modules' architecture and support for multiple voltage standards, facilitating versatile integration in industrial and commercial electronic designs.

Replacement Considerations

Direct replacements within the same package and pinout may include other speed grades of the A54SX16A series, such as A54SX16-1VQG100 or A54SX16-2VQG100, provided the timing requirements align. Verify that any substitute maintains the same 100-pin TQFP footprint and electrical characteristics to ensure mechanical and functional compatibility.