XC18V512VQG44C

Overview

The XC18V512VQG44C is a configuration memory device manufactured by AMD (formerly Xilinx). It features a memory density of 512K x 8 bits, providing a total capacity of 4,194,304 bits. The component supports both parallel and serial programming interfaces and utilizes CMOS technology. It is housed in a lead-free, plastic VQFP-44 package with 44 pins. Key electrical parameters include a maximum access time of 20 ns and a maximum clock frequency of 20 MHz. The device offers a minimum data retention time of 20 years and endurance rated for 20,000 write/erase cycles.

Feature Summary

• Supports flexible configuration via parallel or serial interface modes
• Provides long-term non-volatile data retention for FPGA configuration
• Manufactured using lead-free compliant CMOS processes

Applications

• Configuration of Xilinx Virtex-II and Virtex-II Pro FPGAs
• Configuration of Xilinx Spartan-IIE FPGAs
• System initialization storage for embedded hardware designs

Procurement Notes

Verify the specific suffix 'VQG44C' to ensure compatibility with the target FPGA family and package requirements. Confirm that the procurement source provides genuine components with valid traceability documentation. Check for RoHS compliance status if environmental regulations apply to the final assembly. Ensure the ordering quantity matches project needs without relying on speculative stock availability.

Selection Notes

Select this part when configuring larger Xilinx devices requiring higher capacity than the XC18V02 series. The VQFP-44 package is suitable for surface-mount applications where space efficiency is prioritized. Consider the 20ns access speed for systems requiring rapid configuration retrieval. Evaluate the 20,000 cycle endurance against the expected update frequency of the design.

Part Context

This component belongs to the Xilinx Platform Flash XL family of configuration PROMs. These devices are specifically designed to store the bitstream data required to initialize Xilinx Field Programmable Gate Arrays (FPGAs) upon power-up. They serve as the primary non-volatile memory source for reconfigurable logic devices in various industrial and communication applications.

Replacement Considerations

Direct replacements within the same family include XC18V04VQG44C for higher capacity or XC18V02VQG44C for lower capacity configurations. Verify pinout compatibility and software tool support when substituting with other Platform Flash XL variants.