1. Product Specifications
Core Architecture
- Part Number: XA3S500-4FT256Q
- Device Family: Spartan-3 Automotive Extended
- System Gates: 500,000
- Logic Cells: 10,476
- Package Type: FT256Q (Quad Flat Pack, 17x17mm)
- Speed Grade: -4 (Commercial/Industrial timing)
- Operating Temperature: -40ยฐC to +125ยฐC (Automotive Extended Range)
Memory Resources
- Block SelectRAM: 360 Kbits total (20 blocks of 18 Kbits each)
- Distributed SelectRAM: 73 Kbits
- Configuration Storage: SRAM-based, volatile
- Memory Configuration: Flexible single/dual-port options
Input/Output Capabilities
- User I/O Pins: 190 maximum
- Differential I/O Pairs: 68 pairs
- I/O Standards: LVTTL, LVCMOS (3.3V, 2.5V, 1.8V, 1.5V), LVDS, SSTL, HSTL
- Maximum I/O Toggle Rate: Up to 622 Mbps
Clocking and Timing
- Digital Clock Managers (DCMs): 4 units
- Global Clock Buffers: 8 dedicated networks
- Internal Clock Speed: Up to 326 MHz
- Clock Distribution: Low-skew global and regional networks
Embedded Features
- Multipliers: 20 dedicated 18×18 multipliers
- Processor Interface: OPB (On-Chip Peripheral Bus) ready
- Configuration Options: Master/slave serial, parallel, JTAG
2. Pricing Information
Pricing for the XA3S500-4FT256Q is subject to market conditions, order quantities, and distributor agreements. Automotive-qualified FPGAs typically command premium pricing due to extended qualification requirements.
Price Range Guidance:
- Small quantities (1-99): Contact for current pricing
- Production volumes (1000+): Significant volume discounts available
- Long-term agreements: Special pricing for automotive OEMs
Procurement Recommendations:
- Engage authorized Xilinx distributors for current quotes
- Consider automotive supply chain requirements
- Evaluate long-term availability programs (LTAP)
3. Documents & Media
Technical Documentation
- Product Brief: XA3S500-4FT256Q overview and key features
- Complete Datasheet: Spartan-3 FPGA Family comprehensive specifications
- Package Documentation: FT256Q mechanical drawings and thermal data
- Migration Guide: Upgrade paths from previous generations
Design Support Materials
- Pinout Files: Available in Allegro, Altium, and other CAD formats
- IBIS Models: Signal integrity simulation models
- Thermal Models: Junction-to-ambient thermal resistance data
- Application Notes: Automotive design best practices
Development Resources
- ISE Design Suite: Legacy development environment support
- IP Core Libraries: Pre-verified intellectual property blocks
- Reference Designs: Automotive application examples
- Constraint Files: Timing and placement templates
Qualification Documents
- AEC-Q100 Certification: Automotive Electronics Council qualification
- Reliability Reports: MTBF and failure rate analysis
- Quality Manual: ISO/TS 16949 compliance documentation
4. Related Resources
Development Platforms
- Spartan-3 Starter Kit: Basic evaluation platform
- Automotive Development Boards: Industry-specific reference designs
- Custom Evaluation Modules: Third-party development solutions
Complementary Components
- Configuration Memory: Serial Flash (SPI), Parallel Flash, CPLD controllers
- Power Management: Multi-rail power supplies, voltage supervisors
- Interface Controllers: CAN, LIN, FlexRay, Ethernet PHYs
- Crystal Oscillators: Low-jitter clock sources for automotive applications
Software and Tools
- Xilinx ISE: Integrated development environment (legacy support)
- ModelSim: HDL simulation and verification
- ChipScope Pro: Embedded logic analyzer for debugging
- PlanAhead: Floorplanning and constraint management
Application Domains
- Automotive Electronics: Engine management, body control modules
- Infotainment Systems: Audio/video processing, connectivity hubs
- Safety Systems: ADAS components, airbag controllers
- Industrial Automation: Motor control, process monitoring
- Communication Infrastructure: Protocol conversion, data aggregation
Technical Support
- Application Engineers: Regional support specialists
- Online Forums: Community-driven technical discussions
- Training Programs: FPGA design methodology courses
- Webinar Series: Regular technical updates and tutorials
5. Environmental & Export Classifications
Environmental Compliance Standards
- RoHS Directive: Compliant with EU Restriction of Hazardous Substances
- REACH Regulation: Pre-registered under EU chemical legislation
- Conflict Minerals: Sourced from conflict-free supply chains
- Green Initiative: Halogen-free package options available
Operating Environmental Specifications
- Junction Temperature Range: -40ยฐC to +125ยฐC continuous operation
- Storage Temperature: -65ยฐC to +150ยฐC non-operating
- Thermal Resistance: ฮธJA = 20.5ยฐC/W (still air), 15.2ยฐC/W (200 LFM airflow)
- Power Consumption: Optimized for automotive power budgets
Export Control Information
- Export Control Classification Number (ECCN): 3A001.a.7
- Harmonized Tariff Schedule (HTS): 8542.31.0001
- Country of Origin: Manufacturing location dependent
- Export License: May require authorization for certain destinations
Automotive Quality Standards
- AEC-Q100 Grade: Grade 1 (-40ยฐC to +125ยฐC)
- Qualification Level: Production Part Approval Process (PPAP) ready
- Reliability Target: Zero defects per million opportunities
- Traceability: Full lot traceability and change control
Package and Handling Classifications
- Moisture Sensitivity Level (MSL): Level 3 per JEDEC J-STD-020
- ESD Sensitivity: Class 1C (>1000V Human Body Model)
- Lead Finish: Matte tin or NiPdAu options
- Package Marking: Automotive-grade identification codes
Regulatory Certifications
- ISO/TS 16949: Automotive quality management system
- ISO 14001: Environmental management compliance
- OHSAS 18001: Occupational health and safety standards
- Production Facility: Automotive-certified manufacturing sites
Summary
The XA3S500-4FT256Q delivers proven FPGA performance with automotive-grade reliability for demanding applications. Its 500K system gate capacity, extended temperature operation, and comprehensive I/O capabilities make it an excellent choice for automotive electronics, industrial control systems, and other mission-critical applications. The combination of mature Spartan-3 architecture, automotive qualification, and extensive development ecosystem ensures successful deployment in production environments.
The XA3S500-4FT256Q represents a cost-effective solution for applications requiring automotive-qualified programmable logic with moderate complexity requirements. Its proven track record in automotive applications and continued long-term support make it suitable for new designs requiring reliable, field-proven FPGA technology.
For current availability, pricing, and technical specifications of the XA3S500-4FT256Q, contact authorized Xilinx distributors or visit the official AMD-Xilinx website.
