1. Product Specifications
Core Architecture
- Part Number: XC2S400E-6FG676C
- Manufacturer: AMD Xilinx (formerly Xilinx Inc.)
- Product Family: Spartan-IIE FPGA Series
- System Gates: 400,000 gates
- Logic Cells: 10,800 cells
- Process Technology: 0.15ฮผm
Performance Characteristics
- Maximum Operating Frequency: 357MHz
- Speed Grade: -6 (high-performance grade)
- Operating Voltage: 1.8V single supply
- Power Consumption: Low-power design optimized for portable applications
Memory Resources
- Block RAM: Up to 288K bits
- Distributed RAM: Up to 221,184 bits
- RAM Size: 20kB total embedded memory
I/O and Connectivity
- Package Type: 676-pin Fine-pitch Ball Grid Array (FBGA)
- I/O Standards: 19 selectable I/O standards supported
- Total I/Os: 410 user I/O pins
- DLLs: 4 Delay-Locked Loops (DLLs) for clock management
- Terminations: 676 total terminations
Environmental Specifications
- Operating Temperature Range: 0ยฐC to +85ยฐC
- Storage Temperature Range: -65ยฐC to +150ยฐC
- Junction Temperature: Up to 125ยฐC
- Package Moisture Sensitivity: MSL-3 (Moisture Sensitivity Level 3)
2. Pricing Information
Market Pricing
The XC2S400E-6FG676C pricing varies based on quantity, supplier, and current market conditions. As a legacy component that is NOT RECOMMENDED for NEW DESIGN, pricing typically reflects its specialized availability:
- Small Quantities (1-99 units): Contact authorized distributors for current pricing
- Volume Orders (100+ units): Significant discounts available through bulk purchasing
- Lead Time: 6-8 weeks for standard orders (subject to availability)
- Availability: Limited stock through specialized distributors and surplus component suppliers
Cost Considerations
- Development Tools: Xilinx ISE software suite required (legacy support)
- Programming Hardware: Compatible with Xilinx programming cables and development boards
- Support Costs: Limited technical support as product is end-of-life
3. Documents & Media
Technical Documentation
- Official Datasheet: Spartan-IIE FPGA Family Complete Data Sheet (DS077)
- User Guide: Spartan-IIE Configuration User Guide
- Package Information: 676-pin FBGA Package Details and Pin-out Diagrams
- Timing Specifications: AC/DC Characteristics and Timing Parameters
Design Resources
- IBIS Models: Signal integrity simulation models
- FPGA Editor Files: Physical design constraint files
- Reference Designs: Sample implementations and design examples
- Application Notes: Best practices for Spartan-IIE implementation
Software Tools
- ISE Design Suite: Legacy development environment (version 14.7 final release)
- WebPACK: Free development tools for Spartan devices
- ChipScope Pro: Integrated logic analyzer for debugging
- CORE Generator: IP core creation and integration tools
Package and Mechanical Drawings
- 3D Package Models: STEP/IGES files for mechanical design
- Footprint Libraries: PCB layout libraries for major CAD tools
- Thermal Modeling: Junction-to-ambient thermal resistance data
- Mechanical Specifications: Package dimensions and tolerances
4. Related Resources
Recommended Alternatives
Since the XC2S400E-6FG676C is not recommended for new designs, consider these modern alternatives:
Current Generation Options
- Spartan-7 Series: XC7S100T-2FGG676I (pin-compatible upgrade path)
- Artix-7 Series: XC7A100T-2FGG676I (enhanced performance and features)
- Zynq-7000 Series: XC7Z020-2CLG484I (ARM processor + FPGA integration)
Design Migration Support
- Migration Guides: Detailed documentation for upgrading legacy designs
- IP Core Updates: Modern equivalents for legacy IP functions
- Design Consultation: Professional services for design modernization
Development Ecosystem
- Evaluation Boards: Spartan-IIE development and evaluation platforms
- Third-party Tools: Compatible simulation and verification software
- Training Resources: Online courses and documentation for FPGA development
- Community Support: Forums and user groups for legacy device support
Application Examples
- Digital Signal Processing: High-speed filtering and signal conditioning
- Industrial Control: Real-time control systems and automation
- Communications: Protocol processing and interface bridging
- Test Equipment: Automated test equipment and measurement instruments
5. Environmental & Export Classifications
RoHS Compliance Status
RoHS Status: Non-Compliant
- The XC2S400E-6FG676C predates current RoHS regulations
- Contains restricted substances including lead in solder connections
- Not suitable for applications requiring RoHS compliance
- Alternative: Consider RoHS-compliant successors for EU market compliance
Environmental Ratings
- Pb-Free Status: Contains lead (not lead-free)
- Halogen Status: May contain halogenated compounds
- Conflict Minerals: Complies with conflict minerals reporting requirements
- WEEE Directive: Subject to electronic waste disposal regulations
Export Control Classifications
- ECCN Code: 3A001.a.7 (dual-use technology)
- Schedule B: 8542.39.0001 (integrated circuits)
- Country of Origin: Varies by manufacturing facility
- Export Restrictions: Subject to U.S. export administration regulations
Regulatory Compliance
- CE Marking: Required for European Union market access
- FCC Compliance: Meets electromagnetic compatibility requirements
- REACH Regulation: Substance registration and evaluation compliance
- ISO Certifications: Manufactured in ISO 9001 certified facilities
Quality and Reliability Standards
- AEC-Q100: Not automotive qualified (commercial grade only)
- Moisture Sensitivity: MSL-3 classification requires proper handling
- Electrostatic Discharge: Class 1C ESD sensitive device
- Operating Life: 20+ year operational life under normal conditions
Key Applications
The XC2S400E-6FG676C excels in applications requiring:
- High-speed digital signal processing
- Real-time system control and monitoring
- Custom protocol implementation
- Legacy system maintenance and upgrades
- Educational and research projects
Conclusion
While the XC2S400E-6FG676C represents proven FPGA technology with robust performance characteristics, designers should carefully consider the implications of using an end-of-life product. For new designs, migration to current-generation Spartan-7 or Artix-7 devices is strongly recommended to ensure long-term availability, modern tool support, and compliance with current environmental regulations.
For existing designs requiring the XC2S400E-6FG676C, authorized distributors can provide remaining inventory and support services to maintain critical systems while planning for future upgrades.
