The XC3S250E-4PQ208I is a versatile and cost-effective FPGA (Field-Programmable Gate Array) from Xilinx’s popular Spartan-3E family. This programmable logic device delivers exceptional performance for embedded applications, digital signal processing, and system prototyping across industrial and commercial markets.
Product Specifications
Core Architecture
The XC3S250E-4PQ208I features a robust architecture built on proven Spartan-3E technology:
- Logic Cells: 250,000 system gates equivalent
- Configurable Logic Blocks (CLBs): 1,164 CLBs containing 4,656 logic cells
- Block RAM: 216 Kbits of dedicated block RAM
- Multipliers: 12 dedicated 18×18 multipliers for DSP applications
- I/O Pins: 158 user I/O pins for maximum connectivity
- Package Type: 208-pin Plastic Quad Flat Pack (PQFP)
- Speed Grade: -4 (standard commercial speed grade)
- Operating Temperature: Industrial grade (-40ยฐC to +100ยฐC)
Memory and Storage
The XC3S250E-4PQ208I incorporates substantial memory resources for complex applications. The device includes distributed RAM within CLBs plus dedicated block RAM modules that can be configured as single or dual-port memory. This flexible memory architecture supports various data storage requirements from small buffers to large frame buffers.
DSP Capabilities
With 12 dedicated multiplier blocks, the XC3S250E-4PQ208I excels in digital signal processing applications. These hardware multipliers can perform 18×18-bit multiplication operations at high speed, making the device ideal for filtering, transforms, and other compute-intensive algorithms.
Price
Pricing for the XC3S250E-4PQ208I varies based on quantity, distributor, and market conditions. Contact authorized Xilinx distributors for current pricing and availability. Volume discounts are typically available for production quantities. The XC3S250E-4PQ208I offers excellent value proposition in the mid-range FPGA segment, balancing performance capabilities with cost-effectiveness.
Documents & Media
Technical Documentation
- Product Data Sheet: Complete electrical specifications, timing parameters, and package information
- User Guide: Comprehensive implementation guide covering design methodologies and best practices
- Package and Pinout Information: Detailed pin assignments and mechanical drawings for the 208-pin PQFP package
- Migration Guide: Instructions for upgrading from previous Spartan generations
Design Resources
- Reference Designs: Example implementations demonstrating key features of the XC3S250E-4PQ208I
- Application Notes: Specialized implementation guides for common use cases
- Errata Documentation: Known issues and recommended workarounds
- Characterization Reports: Performance benchmarks and power consumption data
Software Support
The XC3S250E-4PQ208I is fully supported by Xilinx ISE Design Suite, providing comprehensive tools for synthesis, implementation, and debugging. ChipScope Pro analyzer enables real-time debugging of designs running on the device.
Related Resources
Development Platforms
Several development boards feature the XC3S250E-4PQ208I, enabling rapid prototyping and evaluation:
- Spartan-3E Starter Kit with onboard peripherals and interfaces
- Third-party development boards optimized for specific applications
- Custom carrier boards for production deployment
Compatible Devices
The XC3S250E-4PQ208I shares architecture compatibility with other Spartan-3E family members, facilitating design migration and scalability. Related devices include the XC3S100E for cost-sensitive applications and XC3S500E for higher logic density requirements.
IP Cores and Libraries
Extensive IP core libraries support the XC3S250E-4PQ208I, including:
- Communication interfaces (UART, SPI, I2C)
- Memory controllers for external SDRAM and Flash
- DSP functions including filters and transforms
- Processor cores for embedded applications
Design Tools and Utilities
Beyond the primary ISE toolchain, various utilities enhance XC3S250E-4PQ208I development workflows, including timing analysis tools, power estimation utilities, and configuration management software.
Environmental & Export Classifications
Environmental Compliance
The XC3S250E-4PQ208I meets stringent environmental standards:
- RoHS Compliant: Lead-free manufacturing process meeting European environmental directives
- REACH Compliance: Conforms to EU chemical safety regulations
- Halogen-Free: Environmentally conscious packaging materials
- Operating Temperature Range: Industrial grade specification (-40ยฐC to +100ยฐC)
- Storage Temperature: Extended range for harsh environments
Export and Trade Classifications
- ECCN (Export Control Classification Number): Consult current export control documentation for specific classification
- Country of Origin: Manufacturing location details available upon request
- Trade Compliance: Meets international trade regulations for dual-use technology
Quality and Reliability Standards
The XC3S250E-4PQ208I undergoes rigorous qualification testing including thermal cycling, humidity exposure, and accelerated aging tests. The device meets commercial and industrial reliability standards with low failure rates and extended operational lifetime.
Package and Shipping Information
The 208-pin PQFP package provides excellent thermal performance and reliable connections suitable for both prototyping and production applications. Anti-static packaging protects devices during shipping and storage, while moisture sensitivity ratings ensure proper handling procedures.
The XC3S250E-4PQ208I represents proven FPGA technology with comprehensive support resources, making it an excellent choice for embedded systems, signal processing applications, and digital logic implementations requiring reliable performance in demanding environments.
