XCF04SVOG20C

The XCF04SVOG20C is a discontinued 2-megabit Parallel PROM (Programmable Read-Only Memory) from Xilinx. It was commonly used for configuring various Xilinx FPGAs, particularly those in the Spartan 3E and Spartan 6 families. Here's a detailed breakdown of its features and functionalities:

Technical Specifications:

• Density: 2 Mbit (256 KB x 8)
• Organization: 256,000 x 8 bits
• Package: SOIC-20
• Voltage: 3.3 V
• Access Time: 55 ns
• Pinout: 20 pins, including address, data, control, and power pins

Functionality:

• Stores the configuration bitstream for the FPGA, defining its logic and routing.
• Provides a non-volatile memory solution, meaning the configuration is retained even after power is cycled.
• Enables fast and reliable FPGA programming, crucial for applications requiring quick reconfiguration or boot-up.

Additional Features:

• FormFit™ technology: Allows pin-compatible replacement with other Xilinx PROM devices, offering flexibility in design.
• Low-power consumption: Ideal for battery-powered or portable applications.
• Industrial temperature range: Operates reliably in harsh environments (-40°C to +85°C).

Obsolescence:

• It's important to note that the XCF04SVOG20C is officially discontinued by Xilinx since September 2020. While some existing stock might still be available through distributors, finding replacements for future designs is crucial.

Alternatives:

• Xilinx recommends considering alternative PROM devices like the XCF08PVG20C (4 Mbit) or XCF16PG32C (16 Mbit) if pin compatibility and functionality are critical.
• For newer FPGA families, Xilinx offers flash-based configuration options like SPI Flash or QSPI Flash, providing higher density and rewritability.

If you're working with existing designs employing the XCF04SVOG20C, ensure you have secured sufficient stock or identified suitable replacements to avoid production disruptions. For new projects, exploring alternative configuration options based on your specific needs and the target FPGA family is recommended.