Product Specifications
The XC4028EX-3HQ208I is a high-performance Field Programmable Gate Array (FPGA) from Xilinx’s proven XC4000E family, designed to deliver exceptional programmable logic capabilities for demanding applications. This advanced FPGA combines robust architecture with cost-effective implementation for versatile digital design solutions.
Key Technical Specifications
Core Architecture:
- Logic Capacity: 28,000 equivalent gates
- Logic Cells: 2,432 configurable logic blocks (CLBs)
- Process Technology: 0.35ฮผm three-layer metal CMOS
- Supply Voltage: 5V operation
- Speed Grade: -3 performance specification
Package Details:
- Package Type: 208-Pin Heat Sink Plastic Quad Flat Pack (HSPQFP)
- Pin Count: 208 pins with enhanced thermal performance
- Package Marking: HQ208I designation
- Operating Temperature: Industrial grade (-40ยฐC to +100ยฐC)
Performance Characteristics:
- System Clock Rate: Up to 80 MHz synchronous operation
- Internal Performance: Exceeds 150 MHz for optimized paths
- I/O Capability: High logic cell to I/O ratio with VersaRing interface
- Memory Features: On-chip Select-RAM with edge-triggered and dual-port modes
Advanced Features:
- VersaBlock logic modules for enhanced design flexibility
- Programmable output slew-rate control for noise reduction
- Zero flip-flop hold time for simplified system timing
- Abundant interconnect routing resources
- SRAM-based reprogrammable architecture
Price Information
The XC4028EX-3HQ208I is available through authorized Xilinx distributors and electronic component suppliers. Pricing varies based on quantity, lead time, and supplier availability.
Pricing Considerations:
- Legacy component with limited new production
- Available primarily through surplus and broker channels
- Competitive pricing for maintenance and legacy system support
- Volume discounts available for qualified orders
- Contact authorized distributors for current pricing and availability
Important Note: This device is marked as “NOT RECOMMENDED FOR NEW DESIGN” by Xilinx. Consider newer FPGA families for new product development while this part remains available for existing system maintenance and support.
Documents & Media
Technical Documentation
- XC4028EX User Guide PDF Datasheet – Comprehensive technical specifications and implementation guidelines
- XC4000E Family Overview – Architecture and feature comparison documentation
- Application Notes – Design implementation best practices and optimization techniques
- Programming Guide – Configuration and bitstream generation procedures
Design Support Resources
- Pinout Diagrams – Complete pin assignment and package drawings
- Timing Specifications – Detailed timing parameters and constraints
- Package Mechanical Drawings – Physical dimensions and thermal characteristics
- Reference Designs – Example implementations and starter projects
Software Compatibility
- Xilinx ISE Design Suite – Primary development environment
- VHDL/Verilog HDL Support – Industry-standard hardware description languages
- Schematic Capture Tools – Graphical design entry options
- ABEL Design Entry – Legacy design methodology support
Related Resources
Compatible Devices
The XC4028EX-3HQ208I is pinout-compatible with several equivalent devices in the Xilinx portfolio:
- XC4025E – Alternative with similar gate count
- XC4028XL – Low-voltage variant (3.3V operation)
- XC4036EX – Higher capacity option in same family
Development Tools
- Xilinx Vivado Design Suite – Modern development platform (for migration planning)
- ISE Design Tools – Legacy toolchain for XC4000E family support
- Third-party Synthesis Tools – Compatible logic synthesis solutions
- FPGA Programming Hardware – Configuration and debugging equipment
Application Areas
- Legacy System Maintenance – Replacement parts for existing designs
- Industrial Control Systems – Proven reliability in harsh environments
- Telecommunications Equipment – High-performance signal processing
- Test and Measurement – Reconfigurable instrumentation platforms
- Prototyping and Development – Educational and research applications
Migration Options
For new designs, consider these modern Xilinx FPGA families:
- Spartan-7 Series – Cost-optimized modern alternative
- Artix-7 Series – Enhanced performance and lower power
- Zynq-7000 Series – ARM processor integration capabilities
Environmental & Export Classifications
Environmental Compliance
- RoHS Status: Not RoHS compliant (legacy product)
- REACH Compliance: Subject to current EU chemical regulations
- Conflict Minerals: Compliant with conflict minerals reporting requirements
- Environmental Programs: Eligible for Xilinx environmental initiatives where applicable
Operating Conditions
- Operating Temperature Range: -40ยฐC to +100ยฐC (Industrial grade)
- Storage Temperature Range: -65ยฐC to +150ยฐC
- Relative Humidity: 5% to 95% non-condensing
- Thermal Resistance: Enhanced with HSPQFP package design
Export Control Information
- ECCN Classification: Subject to US Export Administration Regulations (EAR)
- Country of Origin: Manufactured under Xilinx quality standards
- Export License Requirements: May require export license for certain destinations
- Dual-Use Technology: Subject to export control regulations
Quality and Reliability
- Quality Standards: Manufactured to ISO 9001 quality management standards
- Reliability Testing: Extensive qualification and reliability testing
- Mean Time Between Failures (MTBF): High reliability for critical applications
- Package Quality: Enhanced thermal performance with heat sink package
Handling and Storage
- ESD Sensitivity: Class 1 electrostatic discharge sensitive device
- Moisture Sensitivity: Level 3 moisture sensitivity classification
- Storage Requirements: Dry pack storage recommended for optimal shelf life
- Handling Precautions: Follow standard ESD protection procedures
Disclaimer: The XC4028EX-3HQ208I is a legacy product not recommended for new designs. This information is provided for reference and maintenance support of existing systems. For new product development, consult Xilinx for current FPGA family recommendations and migration guidance.
