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XC18V512PC20I

XC18V512PC20I Description

The XC18V512PC20I is a high-performance 512kb In-System Programmable (ISP) PROM from AMD, designed for FPGA configuration memory applications. Operating within a 3V to 3.6V supply range, this surface-mount device is housed in a 20-pin PLCC package, making it suitable for compact and space-constrained designs. Although marked as Obsolete by the manufacturer, it remains a reliable choice for legacy systems requiring stable, non-volatile memory storage. The device complies with ECCN 3A991B1B2 and is REACH Unaffected, ensuring regulatory compatibility for industrial and commercial use. Its Moisture Sensitivity Level (MSL 3) indicates a 168-hour floor life after exposure to ambient conditions.

XC18V512PC20I Features

• Memory Capacity: 512kb density, ideal for medium-density FPGA configuration storage.
• In-System Programmability: Supports ISP for flexible field updates without physical removal.
• Wide Voltage Range: Operates at 3.3V ±10%, compatible with low-power FPGA systems.
• Robust Packaging: 20-PLCC tube packaging ensures mechanical durability and ease of handling.
• Industrial Temperature Support: Designed for I-Temp (industrial temperature) environments, ensuring reliability in harsh conditions.
• Legacy Compatibility: Backward-compatible with older FPGA platforms, reducing migration costs.

XC18V512PC20I Applications

This PROM is particularly suited for:

• FPGA Configuration: Stores boot code for AMD/Xilinx FPGAs, ensuring reliable startup sequences.
• Industrial Control Systems: Used in PLCs, motor controllers, and automation equipment where ISP is critical.
• Telecommunications: Provides non-volatile memory for network switches and routers requiring stable firmware storage.
• Military/Aerospace: Legacy systems benefit from its industrial-grade temperature tolerance and proven reliability.
• Embedded Systems: Ideal for medical devices and instrumentation where field reprogrammability is essential.

Conclusion of XC18V512PC20I

The XC18V512PC20I offers a balanced combination of density, in-system programmability, and industrial robustness, making it a pragmatic choice for legacy FPGA-based designs. While newer alternatives exist, its 3.3V operation, PLCC packaging, and ISP capability ensure continued relevance in applications demanding backward compatibility and field-upgrade flexibility. Engineers working with older AMD/Xilinx FPGAs or industrial systems will find this PROM a dependable solution for configuration storage.