The XC3S500E4FTG256I is a cutting-edge Field Programmable Gate Array (FPGA) from Xilinx’s renowned Spartan-3E family, designed to deliver exceptional performance and flexibility for a wide range of digital applications. This industrial-grade FPGA combines advanced programmable logic capabilities with cost-effective design, making it the ideal choice for embedded systems, communication infrastructure, and industrial automation projects.
Product Specifications
Core Architecture
The XC3S500E4FTG256I features a robust architecture built on proven Spartan-3E technology:
Logic Elements:
- 500,000 system gates equivalent
- 10,476 logic cells
- 4,656 Configurable Logic Blocks (CLBs)
- 232 Input/Output Blocks (IOBs)
Memory Resources:
- 360 Kbits of distributed RAM
- 360 Kbits of block RAM
- 20 dedicated 18Kb block RAM modules
- Dual-port RAM capability
Digital Signal Processing:
- 20 dedicated 18×18 multipliers
- Enhanced DSP48 slices for high-performance arithmetic operations
- Optimized for signal processing applications
Clock Management:
- 4 Digital Clock Managers (DCMs)
- Advanced clock synthesis and distribution
- Low-jitter clock generation
- Clock frequency synthesis up to 326 MHz
Package and Operating Conditions:
- Package Type: FTG256 (Fine-Pitch Ball Grid Array)
- Pin Count: 256 pins
- Operating Temperature: Industrial grade (-40ยฐC to +100ยฐC)
- Supply Voltage: 1.2V core, 3.3V I/O
- Speed Grade: -4 (highest performance grade)
Interface Capabilities
The XC3S500E4FTG256I supports multiple industry-standard interfaces:
- LVDS, LVPECL, and LVTTL I/O standards
- High-speed serial connectivity
- Memory controller interfaces (DDR, DDR2)
- PCI and PCI Express compatibility
- JTAG boundary scan for testing and debugging
Price Information
Competitive Pricing Structure:
- Unit Price: Contact authorized distributors for current pricing
- Volume Discounts: Available for quantities of 100+ units
- Educational Pricing: Special rates for academic institutions
- Long-term Supply: Extended availability guarantee for production designs
Note: Pricing may vary based on market conditions, quantity, and distribution channels. Contact your local Xilinx representative for the most current XC3S500E4FTG256I pricing information.
Documents & Media
Technical Documentation
Datasheet and Specifications:
- XC3S500E4FTG256I Official Datasheet (PDF)
- Spartan-3E Family Data Sheet
- DC and AC Switching Characteristics
- Package Mechanical Drawings
Design Resources:
- Spartan-3E FPGA User Guide
- Configuration User Guide
- Libraries Guide for Spartan-3E Devices
- Constraints Guide
Application Notes:
- Power Consumption Analysis
- PCB Design Guidelines
- High-Speed Design Considerations
- Thermal Management Best Practices
Development Tools
Software Support:
- ISE Design Suite compatibility
- Vivado Design Suite (legacy support)
- ChipScope Pro for debugging
- EDK (Embedded Development Kit)
Reference Designs:
- Starter kit reference designs
- Communication protocol implementations
- DSP application examples
- Memory interface reference designs
Related Resources
Development Boards and Kits
Evaluation Platforms:
- Spartan-3E Starter Kit
- XC3S500E Development Board
- Custom evaluation modules
Compatible Components:
- Configuration memory devices
- Power management solutions
- Clock generation circuits
- Interface transceivers
Design Services and Support
Technical Support:
- Xilinx Answer Database access
- Community forums and discussions
- Application engineering support
- Migration assistance from legacy devices
Training and Education:
- FPGA design methodology courses
- Spartan-3E specific training modules
- Online learning resources
- Certification programs
Software Tools and IP
Intellectual Property Cores:
- Memory controllers
- Communication protocol stacks
- DSP algorithm implementations
- Processor cores and peripherals
Environmental & Export Classifications
Environmental Compliance
The XC3S500E4FTG256I meets stringent environmental standards:
RoHS Compliance:
- Fully RoHS compliant (Restriction of Hazardous Substances)
- Lead-free manufacturing process
- Halogen-free package options available
- WEEE directive compliance
Environmental Ratings:
- Moisture Sensitivity Level: MSL 3
- Peak Reflow Temperature: 260ยฐC
- Storage Temperature: -65ยฐC to +150ยฐC
- Relative Humidity: 5% to 95% non-condensing
Export and Trade Classifications
Export Control Information:
- Export Control Classification Number (ECCN): 3A001.a.7
- HTS (Harmonized Tariff Schedule): 8542.31.0001
- Country of Origin: Manufactured in various locations globally
- REACH compliance certification available
Regulatory Approvals:
- CE marking for European markets
- FCC Part 15 Class B compliance
- UL recognition for safety standards
- ISO 9001 quality system certification
Quality and Reliability
Quality Standards:
- Automotive qualification available (AEC-Q100)
- Military temperature grade options
- Extended temperature range variants
- Radiation-tolerant versions for aerospace applications
Reliability Metrics:
- MTBF (Mean Time Between Failures): >1,000,000 hours
- Package integrity tested to JEDEC standards
- Electrostatic discharge (ESD) protection: >2000V HBM
- Latch-up immunity: >100mA
The XC3S500E4FTG256I represents the pinnacle of Spartan-3E FPGA technology, offering designers the perfect balance of performance, power efficiency, and cost-effectiveness for demanding applications across industrial, communications, and embedded system markets.

