XC18V02VQ44I

Overview

The AMD XC18V02VQ44I is an in-system programmable configuration PROM designed for Xilinx FPGAs. It features a 2-megabit memory capacity and operates on a 3.3V supply voltage (3V to 3.6V). The device supports industrial operating temperatures ranging from –40°C to +85°C and is housed in a 44-VQFP package with dimensions of 10x10 mm. It offers dual configuration modes: serial slow/fast (up to 33 MHz) and parallel (up to 264 Mb/s at 33 MHz). The component provides 20,000 program/erase cycle endurance and includes IEEE Std 1149.1 JTAG support for programming and boundary-scan testing.

Feature Summary

• Supports in-system programming via standard 4-pin JTAG protocol for efficient design iterations without package handling.
• Features cascading capability using the CEO output to drive the CE input of subsequent devices for storing longer bitstreams.
• Incorporates advanced data security options to prevent unauthorized reading of internal programming patterns via JTAG.
• Provides 5V tolerant I/O pins that accept 5V, 3.3V, and 2.5V signals while offering 3.3V or 2.5V output capabilities.

Applications

• Configuration of Xilinx Virtex-II and Virtex-II Pro FPGAs in Master Serial mode
• Configuration of Xilinx Spartan-II and Spartan-IIE FPGAs in Slave Parallel mode
• Configuration of Xilinx Virtex/Virtex-E FPGAs in SelectMAP mode
• Storing FPGA configuration bitstreams requiring re-programmability

Procurement Notes

Verify the specific suffix 'I' corresponds to the industrial temperature range (-40°C to +85°C) as defined in the official datasheet. Confirm the package type matches the 44-VQFP specification. Check for RoHS compliance status, as older revisions may be non-compliant. Ensure the source document explicitly lists this part number as available or obsolete before procurement planning.

Selection Notes

Select this component when designing systems requiring reprogrammable storage for Xilinx FPGA configuration data. It is suitable for applications needing dual configuration modes (serial or parallel) and JTAG-based in-system programming. Consider cascading multiple units if the target FPGA configuration size exceeds 2 megabits. Verify voltage compatibility between the PROM outputs and the target FPGA inputs.

Part Context

The XC18V02VQ44I belongs to the XC18V00 series of in-system programmable configuration PROMs manufactured by Xilinx (now AMD). This series includes variants with different capacities such as 512-kilobit, 1-megabit, and 4-megabit options. These devices are specifically engineered to provide a cost-effective method for storing and reprogramming FPGA configuration bitstreams with high endurance and data retention.

Replacement Considerations

Direct substitute: AT17LV002-10TQI (Microchip Technology).