A54SX16A-1PQG208

Overview

The A54SX16A-1PQG208 is a Field Programmable Gate Array from the Microchip SX-A family, featuring 24,000 system gates and 175 user-programmable I/O pins. It utilizes 0.22 μm / 0.25 μm CMOS antifuse technology to deliver 250 MHz system performance and 350 MHz internal clock speeds. The device operates at a nominal voltage of 2.5 V, with a range of 2.25 V to 2.75 V. It supports mixed-voltage I/O standards including 3.3 V PCI, 5 V TTL, and 2.5 V LVCMOS2. Packaged in a 208-pin Plastic Quad Flat Pack (PQFP), it offers hot-swap compliance and deterministic timing.

Feature Summary

• Nonvolatile single-chip solution using metal-to-metal programmable antifuse interconnect elements for permanent low-impedance connections.
• Supports mixed-voltage operation with 5 V input tolerance and drive strength across 2.5 V, 3.3 V, and 5 V supplies.
• Features individually configurable output slew rates and power-up resistors for deterministic initialization.
• Includes IEEE 1149.1 compliant Boundary-Scan Testing with dedicated or flexible JTAG pin modes.

Applications

• High-performance logic integration replacing complex CPLDs or gate arrays
• Hot-swap compatible system designs requiring safe insertion into active buses
• PCI-compliant interface implementations supporting 66 MHz operations

Procurement Notes

Verify component authenticity through authorized Microchip distributors. Confirm package integrity and lead condition upon receipt. Check for RoHS compliance markings if required by assembly specifications. Ensure storage conditions meet humidity sensitivity requirements prior to soldering. Validate part marking against official datasheet documentation.

Selection Notes

Select this model for applications requiring high-speed logic with nonvolatile configuration. The -1 speed grade provides approximately 15% faster performance than standard grades. Verify that the 208-pin PQFP package fits the target PCB footprint. Ensure design tools support the SX-A architecture for place-and-route optimization.

Part Context

This component belongs to the Actel SX-A FPGA family, acquired by Microchip Technology. The series is characterized by its antifuse-based nonvolatile fabric and high-density logic modules. It serves as a bridge between traditional CPLDs and larger ASIC solutions, offering rapid prototyping capabilities with fixed hardware performance.

Replacement Considerations

Direct replacements within the same package include other A54SX16A variants with different speed grades or temperature ranges. Cross-family migration may require architectural adjustments due to differences in routing resources and logic cell structures compared to modern flash-based FPGAs.