1. Product Specifications
Core Technical Specifications
- Manufacturer: AMD/Xilinx (formerly Xilinx Inc.)
- Product Family: Spartan-3A DSP FPGA Family
- Part Number: XC3SD3400A-4FG676C
- System Gates: 3.4 Million gates
- Logic Cells: 53,712 cells
- Processing Technology: 90nm CMOS technology
- Supply Voltage: 1.2V core voltage
- Package Type: 676-pin Fine-pitch Ball Grid Array (FBGA)
- I/O Count: 469 user I/Os
- Operating Frequency: Up to 667 MHz (667MHz system clock)
Advanced DSP Features
- XtremeDSP DSP48A Slices: Enhanced DSP processing capabilities
- Maximum Operating Frequency: 250 MHz with XtremeDSP DSP48A slices
- Dedicated Multiplier: 18-bit x 18-bit multiplier for efficient mathematical operations
- 48-bit Accumulator: High-speed multiply-accumulate (MAC) operations
- Integrated Adder: Supports complex multiply or multiply-add operations
- Cascaded Operations: Optional cascaded multiply or MAC functionality for increased throughput
Memory Specifications
- Block RAM: 283.5 kB total block RAM capacity
- Enhanced Block RAM: Runs at 250 MHz in standard -4 speed grade
- Registered Outputs: Block RAM with registered outputs for improved performance
- Dual-range VCCAUX: Simplifies 3.3V-only design implementation
I/O and Clock Features
- Differential I/O Support: LVDS, RSDS, mini-LVDS, HSTL/SSTL differential I/O
- Integrated Termination: Built-in differential termination resistors
- Global Clock Networks: Eight low-skew global clock networks
- Additional Clocks: Eight additional clocks per half device
- Low-skew Routing: Abundant low-skew routing resources
Performance Characteristics
- Speed Grade: -4 (standard speed grade)
- Temperature Range: Commercial temperature range
- Power Efficiency: Optimized for low power consumption in 90nm technology
- Field Programmability: Full reconfiguration capability without hardware replacement
2. Price Information
The XC3SD3400A-4FG676C pricing varies based on quantity and distributor:
Current Market Pricing (2025)
- Small Quantities (1-40 units): $378.48 – $434.14 per unit
- Medium Quantities (40-80 units): $351.05 – $402.68 per unit
- Large Quantities (160+ units): $296.20 – $339.76 per unit
- Volume Pricing (400+ units): $213.92 – $245.38 per unit
- High Volume (4000+ units): $200.76 – $230.28 per unit
Pricing Notes
- Prices vary significantly between authorized distributors
- Volume discounts available for quantities over 40 units
- Contact authorized distributors for current availability and volume pricing
- Some suppliers offer additional discounts for long-term contracts
3. Documents & Media
Technical Documentation
- Official Datasheet: Complete technical specifications and electrical characteristics
- User Guide: Spartan-3A DSP FPGA User Guide with detailed implementation guidelines
- Application Notes: DSP-specific application notes and design examples
- Pin Configuration: Detailed pinout diagrams and package information
- Timing Specifications: Comprehensive timing analysis and constraints
Design Resources
- Reference Designs: Sample DSP implementations and starter projects
- IP Cores: Compatible intellectual property cores for rapid development
- Development Tools: Vivado Design Suite compatibility information
- Programming Files: FPGA configuration and programming guidelines
Media Resources
- Product Images: High-resolution package and application photos
- Block Diagrams: System architecture and internal block diagrams
- Performance Charts: Benchmark data and performance comparisons
- Video Resources: Training videos and webinar recordings
4. Related Resources
Development Tools
- Vivado Design Suite: Primary development environment for XC3SD3400A-4FG676C
- ISE Design Tools: Legacy support for existing projects
- Programming Tools: Hardware programming and configuration utilities
- Simulation Tools: Comprehensive simulation and verification environments
Compatible Hardware
- Development Boards: Spartan-3A DSP evaluation and development platforms
- Starter Kits: Entry-level development kits for rapid prototyping
- Reference Boards: Industry-standard reference implementations
- Programming Cables: USB and parallel programming cable options
Technical Support
- Online Forums: Active community support and technical discussions
- Application Engineers: Direct access to AMD/Xilinx technical specialists
- Training Resources: Comprehensive FPGA design training materials
- Knowledge Base: Extensive database of technical articles and solutions
Alternative Components
- XC3SD1800A-4FG676C: Lower-capacity alternative in same package
- XC3SD3400A-5FG676C: Higher speed grade option
- XC3SD3400A-4FGG676C: Alternative package configuration
- Spartan-6 Family: Next-generation FPGA alternatives
5. Environmental & Export Classifications
RoHS Compliance Status
- RoHS Compliance: Not Compliant with current RoHS3 directive
- Lead Content: Contains lead in solder and package materials
- Restriction Status: Restricted for new designs in EU markets requiring RoHS compliance
- Legacy Support: Available for existing designs and non-RoHS applications
Environmental Classifications
- Operating Temperature: Commercial temperature range (0ยฐC to +85ยฐC)
- Storage Temperature: -65ยฐC to +150ยฐC
- Humidity Range: 5% to 95% non-condensing
- Altitude: Up to 3,000 meters operational
- Vibration Resistance: MIL-STD-883 compliant
Export Control Information
- ECCN (Export Control Classification Number): 3A991.d
- USHTS (US Harmonized Tariff Schedule): 8542390001
- TARIC (EU Tariff Code): 8542399000
- Country of Origin: Various (check specific lot marking)
- Export Restrictions: Subject to US export administration regulations
Quality and Certifications
- Quality Standard: ISO 9001:2015 certified manufacturing
- Reliability Testing: Full automotive-grade reliability qualification
- Package Marking: Lot traceability and date code marking
- Warranty Period: Standard 1-year manufacturer warranty
- Lead-Free Alternatives: Contact AMD/Xilinx for RoHS-compliant alternatives
Packaging and Handling
- Moisture Sensitivity: Level 3 per JEDEC J-STD-020
- Packaging Type: Anti-static tray packaging
- Handling Precautions: ESD-sensitive device requiring proper handling procedures
- Storage Requirements: Dry storage recommended in original packaging
The XC3SD3400A-4FG676C represents a proven solution for demanding DSP applications requiring high performance, flexibility, and cost-effectiveness. Its comprehensive feature set, extensive development ecosystem, and proven track record make it an excellent choice for engineers developing next-generation digital signal processing systems.
For the latest technical specifications, pricing, and availability information, consult authorized AMD/Xilinx distributors and the official product documentation.

