The XC17256DPD8C is a 256K-bit Serial Configuration PROM (programmable read-only memory) designed and manufactured by Xilinx. It is primarily used for configuring Xilinx Field-Programmable Gate Arrays (FPGAs). This PROM stores the configuration bitstream that defines the functionality of the FPGA, enabling it to perform its intended task. Upon power-up, the FPGA reads the configuration data from the PROM, effectively programming itself.

Applications

• Configuration memory for Xilinx FPGAs
• Bootloaders for embedded systems
• Storage of configuration data in programmable logic devices
• System configuration in industrial control systems
• Telecommunications equipment configuration
• Aerospace and defense applications using Xilinx FPGAs

Features

• 256K-bit storage capacity: Provides ample storage for configuration data for many Xilinx FPGAs.
• Serial interface: Uses a serial interface to minimize pin count and simplify board layout.
• Low power consumption: Consumes minimal power during operation and standby.
• In-system programmable: Can be programmed while installed in the system.
• Endurance: High number of program/erase cycles.
• Compact package: Available in a space-saving package (typically a DIP or SOIC).
• Operating temperature range: Available in commercial and industrial temperature grades.

Benefits

• Simplified FPGA configuration: Provides a reliable and easy-to-use solution for configuring Xilinx FPGAs.
• Reduced board space: Serial interface and compact package minimize board space requirements.
• Lower power consumption: Extends battery life in portable applications and reduces power costs in other applications.
• Increased system flexibility: In-system programmability allows for easy updates and modifications to the FPGA configuration.
• Improved system reliability: Non-volatile storage ensures that the FPGA is always configured correctly after power-up.

Additional Details

The XC17256DPD8C operates from a 5V power supply. It is typically programmed using a Xilinx programmer or a compatible third-party programmer. The configuration data is loaded into the PROM serially. After programming, the PROM automatically configures the FPGA upon power-up. For detailed specifications, including timing diagrams, programming instructions, and package dimensions, consult the Xilinx datasheet.