XC18V01PC20I

Overview

The XC18V01PC20I is a 3.3V in-system programmable configuration PROM from the XC18V00 series, manufactured by Xilinx (now AMD). It provides 1 Megabit (1,048,576 bits) of non-volatile storage for FPGA configuration bitstreams. The device supports IEEE Std 1149.1 JTAG boundary-scan and in-system programming. It features dual configuration modes: serial (up to 33 MHz) and parallel (up to 264 Mb/s at 33 MHz). The PC20 package is a 20-pin PLCC. I/O pins are 5V tolerant, accepting 5V, 3.3V, and 2.5V signals, with 3.3V or 2.5V output capability. Endurance is rated for 20,000 program/erase cycles over the commercial/industrial temperature range (-40°C to +85°C).

Feature Summary

• In-system programmable via standard 4-pin JTAG protocol for efficient design iterations.
• Supports cascading multiple devices using CEO output to drive subsequent CE inputs.
• Includes advanced data security features to prevent unauthorized reading via JTAG.
• Compatible with Master Serial, Slave Serial, and SelectMAP FPGA configuration modes.

Applications

• Configuration of Xilinx Virtex, Virtex-E, and Virtex-II FPGAs in Master Serial mode.
• Configuration of Spartan-II and Spartan-IIE FPGAs in Slave-Parallel mode.
• Storage of configuration bitstreams for reprogrammable logic designs requiring in-system updates.

Procurement Notes

Verify the specific suffix 'PC20' corresponds to the 20-pin PLCC package as documented in the DS026 datasheet. Confirm that the 'I' suffix indicates the industrial temperature range (-40°C to +85°C). Ensure compatibility with the target FPGA's voltage requirements, noting the 5V tolerant I/O feature. Check for obsolescence status as this specification dates from 2003; consult current AMD/Xilinx product lifecycle notices for availability and replacement recommendations.

Selection Notes

Select the XC18V01 when the FPGA configuration bitstream size is approximately 1 Megabit. Choose the PC20 package if a 20-pin PLCC footprint is required on the PCB. This device is suitable for designs needing in-system reprogramming capabilities via JTAG. Consider cascading with other XC18V00 family members if larger memory capacity is needed. Ensure the design supports the required serial or parallel interface timing specifications.

Part Context

The XC18V01 is part of the XC18V00 series of in-system programmable configuration PROMs. This series includes variants with different capacities such as XC18V512 (512-kilobit), XC18V02 (2-megabit), and XC18V04 (4-megabit). These devices are designed specifically to store and provide configuration data to Xilinx FPGAs. The series utilizes a low-power advanced CMOS FLASH process and supports both serial and parallel configuration interfaces.

Replacement Considerations

Public confirmed substitute part numbers are not explicitly listed in the provided source material. Users should consult AMD/Xilinx official documentation for current lifecycle status and recommended replacements for obsolete components.