XC18V01VQ44C

Overview

The XC18V01VQ44C is a 1-Mbit (128K x 8) In-System Programmable (ISP) configuration PROM designed for Xilinx FPGAs. It utilizes advanced CMOS flash technology and operates at 3.3 volts. The device supports both serial slow and fast configuration modes, enabling efficient data transfer to connected FPGA devices. Key electrical characteristics include a 15 ns access time and compatibility with parallel and serial interfaces. It features a VQFP-44 package and offers high endurance with 20,000 program/erase cycles.

Feature Summary

• Supports In-System Programming for flexible field updates
• Enables daisy-chain configuration for multiple FPGA devices
• Provides read protection to secure configuration data
• Includes power-on reset delay functionality

Applications

• Configuration of Xilinx Field Programmable Gate Arrays
• Embedded systems requiring reliable non-volatile storage
• Industrial control units utilizing FPGA logic cores

Procurement Notes

Verify component authenticity through authorized distributors due to obsolete status. Confirm package integrity and pin alignment against the VQFP-44 specification. Ensure supply chain sources provide traceability documentation. Check for lead-free compliance if required by project standards. Validate that the specific revision matches design requirements before procurement.

Selection Notes

Select this part when interfacing with Xilinx FPGAs requiring 1-Mbit capacity. Consider the VQFP-44 package constraints for PCB layout. Evaluate the need for ISP capabilities versus mask-programmed alternatives. Assess power consumption profiles during active configuration phases. Ensure voltage levels match the target FPGA's configuration interface specifications.

Part Context

This component belongs to the XC18V00 series of configuration PROMs. It serves as a primary memory source for initializing Xilinx FPGA logic. The series is characterized by low-power CMOS flash processes. It replaces older EPROM technologies in modern embedded designs.

Replacement Considerations

Public confirmed substitute part numbers are not available for this obsolete component. Designers should evaluate newer generation configuration memories from AMD/Xilinx or compatible third-party vendors. Verify electrical compatibility and pinout similarities before substituting.