The XC4VLX25-10FFG676I is a powerful field-programmable gate array (FPGA) from Xilinx’s Virtex-4 LX series, engineered to deliver exceptional performance for logic-intensive applications. This industrial-grade device combines advanced architecture with robust reliability, making it an ideal choice for demanding electronic designs across telecommunications, aerospace, automotive, and industrial automation sectors.
Product Specifications
The XC4VLX25-10FFG676I features comprehensive specifications that showcase its versatility and performance capabilities. This FPGA contains 24,576 logic cells organized in a highly efficient architecture, providing substantial processing power for complex digital implementations. The device includes 48 dedicated XtremeDSP slices for high-speed signal processing applications, enabling efficient multiply-accumulate operations and digital filtering functions.
Memory resources are abundant with 1,152 Kbits of block RAM distributed across 72 dual-port blocks, each offering 18 Kbits of storage capacity. The XC4VLX25-10FFG676I supports various memory configurations including single-port RAM, dual-port RAM, and FIFO implementations. Clock management is handled by four digital clock managers (DCMs) that provide flexible frequency synthesis, phase shifting, and clock distribution capabilities.
The device operates with a core voltage of 1.2V and I/O voltages ranging from 1.2V to 3.3V, ensuring compatibility with various interface standards. Operating temperature range spans from -40ยฐC to +100ยฐC for the industrial grade variant, while junction temperature can reach up to +125ยฐC. The XC4VLX25-10FFG676I comes in a 676-pin fine-pitch ball grid array (FFBGA) package measuring 27mm x 27mm, providing excellent thermal performance and signal integrity.
Performance specifications include maximum system clock frequencies exceeding 500 MHz for many applications, with specific timing dependent on design complexity and routing. The -10 speed grade indicates this is the fastest available version of the XC4VLX25, offering superior timing performance for critical path applications.
Price Information
Pricing for the XC4VLX25-10FFG676I varies significantly based on quantity, supplier, and market conditions. As a legacy Xilinx product, availability may be limited through official channels, with many units sourced through authorized distributors and electronic component brokers.
Individual unit pricing typically ranges from $200 to $800 depending on the supplier and package condition. Volume pricing becomes more favorable for quantities exceeding 100 units, with potential discounts of 20-40% for established customers. Industrial users requiring guaranteed supply chains may encounter premium pricing due to the specialized nature and limited availability of this specific device.
When evaluating XC4VLX25-10FFG676I pricing, consider factors such as lead time, package condition (new vs. refurbished), supplier reputation, and warranty terms. Some suppliers offer competitive pricing for obsolete or end-of-life components, but verification of authenticity and functionality becomes crucial for mission-critical applications.
Documents & Media
Comprehensive documentation supports the XC4VLX25-10FFG676I throughout the design process. The primary datasheet provides detailed electrical characteristics, timing specifications, and package information essential for system integration. This document includes DC and AC electrical specifications, power consumption data, and recommended operating conditions.
The Virtex-4 User Guide offers extensive architectural details, explaining the internal structure of logic blocks, memory elements, and I/O capabilities. Configuration guides detail the various programming methods including JTAG, SelectMAP, and serial configuration interfaces. Pin assignment documentation provides complete pinout information for the 676-pin FFBGA package, including power, ground, and dedicated configuration pins.
Application notes demonstrate specific implementation techniques for common design challenges such as clock domain crossing, high-speed I/O interfacing, and power optimization. Reference designs showcase typical applications and provide starting points for custom implementations. Xilinx also provides migration guides for transitioning from older FPGA families or upgrading to newer devices.
Design software support includes compatibility with ISE Design Suite versions that support Virtex-4 devices. Constraint files, IP core libraries, and simulation models facilitate the design process from concept through implementation. Board design guidelines assist in PCB layout considerations for optimal signal integrity and thermal management.
Related Resources
The XC4VLX25-10FFG676I integrates seamlessly with Xilinx’s comprehensive ecosystem of development tools and IP cores. ISE Design Suite provides the primary development environment, offering synthesis, implementation, and debugging capabilities specifically optimized for Virtex-4 devices. ChipScope Pro enables real-time debugging and signal analysis within the FPGA fabric.
Compatible development boards and evaluation kits accelerate prototyping and proof-of-concept development. Third-party vendors offer specialized boards featuring the XC4VLX25-10FFG676I with various peripheral interfaces including Ethernet, USB, memory controllers, and expansion connectors. These platforms provide immediate access to hardware testing without custom board development.
IP core libraries extend functionality with pre-verified components for common functions such as processors, communication protocols, memory controllers, and signal processing algorithms. MicroBlaze soft processor cores enable embedded software development within the FPGA fabric, while interface cores support standards like PCI, Ethernet, and various serial protocols.
Technical support resources include community forums, application notes, and design methodology guides. Training materials and webinars provide education on advanced FPGA design techniques specific to Virtex-4 architecture. Migration tools assist in transitioning designs to newer FPGA families when lifecycle considerations require updates.
Environmental & Export Classifications
The XC4VLX25-10FFG676I complies with international environmental standards and export regulations governing electronic components. RoHS compliance ensures the device meets European Union restrictions on hazardous substances, containing lead-free solder and meeting strict limits on mercury, cadmium, and other restricted materials.
Environmental operating specifications define the acceptable conditions for reliable operation. The industrial temperature grade supports operation from -40ยฐC to +100ยฐC ambient temperature, while junction temperature can reach +125ยฐC under maximum operating conditions. Humidity tolerance extends to 85% relative humidity non-condensing, making the device suitable for challenging environmental conditions.
Export classification follows US Department of Commerce regulations under the Export Administration Regulations (EAR). The XC4VLX25-10FFG676I typically falls under ECCN (Export Control Classification Number) categories that may require export licenses for certain destinations or end-use applications. Customers must verify current export requirements based on their specific application and destination country.
Packaging materials meet international shipping and storage requirements, with moisture sensitivity level (MSL) ratings that define proper handling procedures. Anti-static packaging protects against electrostatic discharge during transport and storage. Environmental stress screening options are available for applications requiring enhanced reliability verification.
Quality certifications may include ISO 9001 manufacturing standards and specific automotive or aerospace qualifications depending on the intended application. Traceability documentation provides complete manufacturing history for applications requiring detailed component genealogy and compliance verification.
The XC4VLX25-10FFG676I represents a mature, proven FPGA solution that continues to serve critical applications requiring reliable, high-performance programmable logic capabilities.

