XC18V01PCG20C0100

Overview

The XC18V01PCG20C0100 is a member of the Xilinx XC18V00 series, specifically the 1-megabit (XC18V01) in-system programmable configuration PROM. It utilizes a low-power advanced CMOS FLASH process and operates at 3.3V with 5V-tolerant I/O pins. The device supports dual configuration modes: serial (up to 33 MHz) and parallel (up to 264 Mb/s). It features IEEE Std 1149.1 JTAG support for boundary-scan testing and in-system programming, offering an endurance of 20,000 program/erase cycles and data retention of 20 years.

Feature Summary

• In-System Programmability via standard 4-pin JTAG protocol for efficient design iterations without package handling.
• Dual Configuration Modes supporting both Master/Slave Serial and Parallel/SelectMAP FPGA interfacing.
• Advanced Data Security features allowing users to inhibit reading of internal programming patterns via JTAG.
• Cascadable architecture enabling storage of longer bitstreams or multiple configurations using the CEO output.

Applications

• Configuration of Xilinx Virtex-II, Virtex-II Pro, and Spartan-IIE FPGAs.
• Configuration of Xilinx Spartan-3 and Spartan-3E FPGA families.
• Configuration of Xilinx Virtex-E and Virtex-4 FPGA families.
• Storage of configuration bitstreams for Xilinx CoolRunner-II CPLDs.

Procurement Notes

This component is officially marked as Obsolete or Under Obsolescence by the manufacturer. Verify current availability status through authorized distributors. Ensure compatibility with legacy Xilinx development tools such as ISE Foundation. Confirm that the specific PCG20 package variant meets the mechanical requirements of the target PCB design before procurement.

Selection Notes

Select this device when configuring Xilinx FPGAs requiring approximately 1 megabit of non-volatile storage. The PCG20 suffix indicates a 20-pin Plastic Leaded Chip Carrier package. Ensure the target FPGA supports Master Serial mode or requires external clocking for Slave modes. Verify voltage levels match the 3.3V VCCINT and VCCO specifications.

Part Context

The XC18V00 series serves as a dedicated configuration memory solution for various Xilinx FPGA and CPLD families. These devices replace older OTP PROMs by offering reprogrammability and higher density. The XC18V01 specifically targets designs needing 1 Megabit capacity, bridging the gap between smaller 512-kilobit and larger 2-megabit options within the same pin-compatible family.

Replacement Considerations

Official substitutes include other members of the XC18V00 series such as XC18V02, XC18V04, or XC18V512, depending on required bitstream size. Cross-family replacements may require schematic changes due to pinout differences. Consult Xilinx documentation for compatible FPGA lists to ensure functional equivalence.