XC18V01SO20C0100

Overview

The XC18V01SO20C is a member of the Xilinx XC18V00 series, consisting of in-system programmable configuration PROMs designed for storing FPGA bitstreams. Operating at 3.3V with low-power CMOS FLASH technology, it provides 1-megabit capacity and supports both serial and parallel configuration modes. The device features IEEE 1149.1 JTAG support for boundary-scan testing and in-system programming, ensuring reliable data retention and endurance.

Feature Summary

• Supports in-system programming via standard JTAG protocol
• Provides dual configuration modes: serial and parallel
• Features 5V-tolerant I/O pins accepting various signal levels
• Includes advanced data security options to prevent unauthorized reading

Applications

• Configuration of Xilinx Virtex-II FPGAs
• Configuration of Xilinx Spartan-IIE FPGAs
• Configuration of Xilinx Spartan-3 FPGAs

Procurement Notes

Verify component authenticity as this part is obsolete or under obsolescence. Confirm package type matches SO20 requirements. Ensure design tools support legacy Xilinx families. Check for lead-free packaging compliance if required by specific environmental standards.

Selection Notes

Select based on required memory capacity relative to target FPGA bitstream size. Verify voltage compatibility between the PROM and FPGA configuration interface. Consider cascading multiple devices if single-chip capacity is insufficient for complex designs.

Part Context

Part of the XC18V00 series of in-system programmable configuration PROMs. Designed specifically for reprogramming and storing Xilinx FPGA configuration bitstreams. Offers cost-effective solutions for system designers requiring flexible configuration management.

Replacement Considerations

XC18V02SO20C (2-megabit), XC18V04SO20C (4-megabit). Verify pinout compatibility and ensure sufficient memory capacity for target FPGA configuration data.

FAQ

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

In 20-pin packages, the CF pin function can be routed to pin 7 using the CF → D4 setting, provided parallel output mode is not used.

What is the purpose of the OE/RESET pin?

The OE/RESET pin holds the address counter reset and puts DATA outputs in high-Z state when Low. It connects to the FPGA's INIT pin to ensure proper reset before configuration.