The Xilinx XC17256EPI is a high-density, in-system programmable Read-Only Memory (PROM) configuration device. It is designed to store the configuration data for Xilinx Field-Programmable Gate Arrays (FPGAs). This PROM ensures that the FPGA can be quickly and reliably configured upon power-up, enabling immediate operation of the designed system. The 'EPI' in the part number signifies specific package and programming interface characteristics.

Applications

• Configuration storage for Xilinx FPGAs in telecommunications infrastructure.
• Boot memory for embedded control systems requiring stable storage.
• Data storage in automated industrial machinery where reliable startup is critical.
• Avionics applications demanding robust memory components.
• Use in automotive electronic control units (ECUs) for rapid configuration.

Features

• In-System Programmable: Facilitates straightforward reprogramming without component removal.
• High Density Storage: Offers 256k bits of memory capacity to support intricate FPGA configurations.
• Fast Configuration Time: Allows for prompt FPGA configuration during system initialization.
• Non-Volatile Memory: Preserves stored data when power is disconnected.
• Enhanced Endurance: Provides numerous reprogrammability cycles for developmental and prototyping uses.

Benefits

• Streamlined FPGA Configuration: Delivers a user-friendly method for deploying Xilinx FPGA setups.
• Reduced Development Timeline: In-system programmability quickens design changes and debugging.
• Improved System Stability: Ensures correct FPGA configuration with each system power cycle.
• Cost-Effective: Minimizes dependency on additional external memory.
• Greater Design Versatility: Accommodates diverse FPGA configuration approaches.
• Optimized System Performance: Shorter configuration period minimizes system startup latency.

Additional Details

The XC17256EPI typically interfaces with the FPGA via a serial interface, loading configuration data at power-up. It's often programmed using dedicated Xilinx programming hardware and software. Detailed specifications, including timing characteristics, voltage requirements, and programming protocols, are available in the Xilinx datasheet. Adherence to these specifications is vital for proper operation and reliability. The package is likely a PDIP (Plastic Dual In-line Package).