A54SX16A-2TQ100

Overview

The A54SX16A-2TQ100 is an antifuse-based Field Programmable Gate Array from the Actel SX-A family, manufactured by Microchip Technology. It features 24,000 system gates and 1,452 configurable logic blocks within a 100-pin Thin Quad Flat Pack (TQFP) package. The device supports up to 81 user-programmable I/O pins and includes dedicated flip-flops for sequential logic. Operating at speed grade -2, it delivers approximately 25% faster performance than standard devices, with internal clock frequencies reaching 350 MHz and system performance up to 250 MHz. It utilizes 0.22 μm / 0.25 μm CMOS technology and supports mixed-voltage I/O standards including 2.5 V, 3.3 V, and 5 V.

Feature Summary

• Nonvolatile antifuse architecture providing permanent configuration without external memory
• Hot-swap compliant I/Os allowing insertion into active systems without damage
• Deterministic timing with low-capacitance metal-to-metal interconnects
• Integrated boundary-scan testing compliant with IEEE 1149.1

Applications

• High-performance digital signal processing
• PCI-compliant interface logic
• State machine and counter implementations
• System integration replacing complex CPLDs or gate arrays

Procurement Notes

Verify the specific suffix requirements for temperature grade and packaging when sourcing replacements. Confirm that the -2 speed grade availability aligns with current manufacturing data sheets, as older grades may have discontinuation notices. Ensure compatibility with Actel Designer software versions supporting the SX-A family for programming and verification.

Selection Notes

Select this component for designs requiring deterministic performance and high density in a TQFP form factor. Consider the -2 speed grade if timing margins require approximately 25% faster operation than standard devices. Evaluate the 81 available I/Os against system interface needs and ensure support for required voltage levels such as 3.3 V PCI or 5 V TTL.

Part Context

This part belongs to the Actel SX-A family of FPGAs, which are known for their antifuse technology and high-speed performance. The A54SX16A variant offers a mid-range capacity within the family, balancing logic resources with pin count. The TQ100 package provides a compact surface-mount solution suitable for space-constrained applications requiring robust programmable logic capabilities.

Replacement Considerations

Direct substitutes include other A54SX16A variants with different speed grades or packages, such as A54SX16A-1TQ100I or A54SX16A-2TQG144A. Verify pinout compatibility and electrical specifications before substitution.