XC18V01PC20C0100

Overview

The XC18V01PC20C0100 is a 3.3V in-system programmable configuration PROM from the XC18V00 series, designed for storing and reprogramming Xilinx FPGA configuration bitstreams. It features a 1-megabit (128K x 8) storage capacity and supports both serial and parallel interface modes for FPGA configuration. The device operates within an industrial temperature range of -40°C to +85°C and utilizes a low-power advanced CMOS FLASH process. It includes JTAG support for boundary-scan testing and in-system programming, ensuring data retention for a minimum of 20 years with an endurance of 20,000 program/erase cycles.

Feature Summary

• Supports in-system programming via standard 4-pin JTAG protocol for efficient design iterations without package handling.
• Provides dual configuration modes: Master Serial for simple single-line interfaces and Parallel/SelectMAP for high-speed byte-wide data transfer.
• Incorporates advanced data security features allowing users to inhibit reading of internal programming patterns via JTAG while maintaining program/erase capabilities.
• Features cascading capability through the CEO output pin, enabling multiple devices to store longer or identical bitstreams for complex FPGA configurations.

Applications

• Configuration of Xilinx Virtex, Spartan, and Virtex-E FPGAs in Master Serial mode.
• Configuration of Xilinx Virtex-II and Spartan-IIE FPGAs in Slave Parallel or SelectMAP modes.
• In-system programming and verification of FPGA configuration data using JTAG-compatible test equipment.
• Cascaded memory setups for FPGAs requiring configuration bitstreams exceeding single-device capacity.

Procurement Notes

Verify component authenticity as this part is under obsolescence. Confirm the specific ordering suffix matches the required package type (PC20) and temperature grade. Ensure compatibility with existing FPGA designs regarding voltage levels and interface modes before procurement.

Selection Notes

Select this device when a 1-megabit configuration memory is required for Xilinx FPGAs such as the XC2V80 or XCV100. Consider the PC20 package availability and verify that the system design supports either serial or parallel configuration modes. Evaluate the need for in-system programmability versus one-time programmable alternatives based on design flexibility requirements.

Part Context

The XC18V01 is part of the XC18V00 series of 3.3V in-system programmable PROMs. This family includes variants with different capacities, such as the XC18V512, XC18V02, and XC18V04, to accommodate various FPGA configuration bitstream sizes. The series is characterized by its low-power CMOS FLASH technology and comprehensive JTAG support for manufacturing and field updates.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation due to the product's obsolete status. Designers should consult Xilinx application notes for recommended migration strategies or compatible legacy components.

FAQ

How is the CF pin function handled in 20-pin packages?

In 20-pin packages, there is no dedicated CF pin. The CF function can be routed to pin 7 by setting the CF → D4 option, provided the parallel output mode is not used.

What is the purpose of the OE/RESET pin during power-up?

During power-up, the OE/RESET pin is held Low by the PROM to reset the address counter and keep outputs in a high-Z state until power supplies stabilize and reach POR thresholds.

Can the XC18V01 be programmed using third-party tools?

Yes, the device supports in-system programming via JTAG using Xilinx iMPACT software or third-party JTAG development systems, and can also be programmed externally using a standard device programmer.