Overview of XC2S300E-6FTG256C FPGA
The XC2S300E-6FTG256C is a powerful field-programmable gate array (FPGA) from AMD Xilinx’s renowned Spartan-IIE family. This versatile programmable logic device delivers exceptional performance with 300,000 system gates and 6,912 logic cells, making it an ideal choice for demanding embedded systems, digital signal processing, and communication applications. As a cost-effective alternative to application-specific integrated circuits (ASICs), this Xilinx FPGA provides designers with the flexibility of reprogrammability without the high initial costs and lengthy development cycles associated with custom silicon.
Key Technical Specifications
Core Architecture Features
| Specification |
Value |
| Logic Cells |
6,912 |
| System Gates |
300,000 |
| Configurable Logic Blocks (CLBs) |
1,536 (32 x 48 array) |
| Total RAM Bits |
65,536 |
| Distributed RAM |
98,304 bits |
| Block RAM |
64K bits |
| Maximum I/O Pins |
182 user I/O |
| Total Pins |
256-pin FTBGA |
Performance Characteristics
| Parameter |
Specification |
| Maximum Frequency |
357 MHz |
| System Clock Rate |
Beyond 200 MHz |
| Speed Grade |
-6 (commercial grade) |
| Process Technology |
0.15µm CMOS |
| Supply Voltage |
1.71V ~ 1.89V (1.8V nominal) |
| Operating Temperature Range |
0°C to 85°C (TJ) |
Package Information
| Package Detail |
Description |
| Package Type |
256-FTBGA (Fine-Pitch Ball Grid Array) |
| Dimensions |
17mm x 17mm |
| Mounting Type |
Surface Mount Technology (SMT) |
| RoHS Compliance |
Yes (Lead-free) |
| Moisture Sensitivity Level |
MSL 3 |
| Packaging |
Tray |
Advanced FPGA Features and Capabilities
Memory Architecture
The XC2S300E-6FTG256C incorporates a hierarchical memory system designed for maximum flexibility:
- Distributed RAM: 98,304 bits organized as 16 bits per Look-Up Table (LUT), enabling efficient implementation of small memory arrays and shift registers
- Block RAM: 64K bits of true dual-port synchronous RAM, configurable as single or dual-port memory blocks
- RAM Configuration: Flexible configurations supporting various data widths and depths to meet diverse application requirements
Clock Management System
Advanced timing control is provided through four Delay-Locked Loops (DLLs), strategically positioned at each corner of the die:
- Precise clock distribution and phase alignment
- Reduction of clock skew and jitter
- Support for clock multiplication and division
- Enhanced system timing performance
I/O Capabilities
The FPGA supports 19 selectable I/O standards, providing excellent interface flexibility:
- LVTTL, LVCMOS (3.3V, 2.5V, 1.8V, 1.5V)
- SSTL2, SSTL3
- GTL, GTL+
- HSTL Class I, II, III, IV
- And many more industry-standard interfaces
Application Areas
Industrial and Embedded Systems
The XC2S300E-6FTG256C excels in industrial automation and control applications:
- Motor control systems
- Programmable logic controllers (PLCs)
- Industrial communication protocols
- Process control and monitoring
- Factory automation equipment
Communications Infrastructure
Ideal for various communication systems and networking equipment:
- Broadband fixed-line access equipment
- Data encryption and compression
- Protocol conversion and bridging
- Network packet processing
- Telecommunications equipment
Consumer Electronics
Perfect for cost-sensitive consumer applications:
- Automotive infotainment systems
- Connected peripherals and printers
- Personal electronics devices
- Audio/video processing
- Display controllers
Digital Signal Processing
The FPGA’s architecture supports intensive DSP applications:
- Digital filtering and signal conditioning
- Fast Fourier Transform (FFT) implementations
- Image and video processing
- Software-defined radio
- Real-time data acquisition systems
Design and Development Advantages
ASIC Replacement Benefits
Choosing the XC2S300E-6FTG256C over traditional ASICs provides significant advantages:
- Zero NRE Costs: No mask charges or upfront tooling expenses
- Rapid Time-to-Market: Immediate implementation without fabrication delays
- Design Flexibility: In-system reprogrammability enables field upgrades
- Risk Mitigation: Design changes possible even after deployment
- Prototype-to-Production: Same device used throughout development cycle
Development Tool Support
Compatible with industry-standard Xilinx development tools:
- Xilinx ISE Design Suite: Comprehensive design environment for Spartan-IIE devices
- Vivado Design Suite: Modern development platform (for compatible workflows)
- ChipScope Pro: Advanced debugging and verification
- Platform Flash: In-system programmable configuration PROMs
- Impact: Configuration and programming utility
Design Resources
Xilinx provides extensive support resources:
- Detailed technical documentation and datasheets
- Reference designs and application notes
- IP cores and design libraries
- Online community forums and technical support
- Training materials and webinars
Configuration and Programming Options
Configuration Methods
The XC2S300E-6FTG256C supports multiple configuration modes:
- Master Serial Mode: FPGA controls configuration sequence
- Slave Serial Mode: External controller manages configuration
- JTAG Boundary Scan: IEEE 1149.1 compliant for testing and programming
- Platform Flash PROM: Non-volatile configuration storage
Programming Interfaces
Standard programming methods include:
- JTAG-based programmers (Platform Cable USB, JTAG-HS)
- In-System Programming (ISP) capability
- ChipScope Pro for real-time debugging
- Multi-FPGA chain programming support
Part Number Breakdown: XC2S300E-6FTG256C
Understanding the part number structure:
- XC: Xilinx Commercial temperature range
- 2S: Spartan-II family designation
- 300E: 300K gate count, Enhanced version
- -6: Speed grade (commercial grade, fastest option)
- FT: Fine-Pitch BGA package family
- G: RoHS-compliant, lead-free package
- 256: 256-pin package
- C: Commercial temperature grade (0°C to 85°C)
Competitive Advantages and Value Proposition
Performance Benefits
- High-speed operation up to 357 MHz enables demanding applications
- Low-power 0.15µm CMOS technology reduces energy consumption
- Fast, predictable interconnect ensures timing closure across design iterations
- Advanced architecture based on proven Virtex-E FPGA technology
Cost-Effectiveness
The Spartan-IIE family delivers exceptional value:
- Industry-leading price-per-gate ratio
- Reduced total cost of ownership compared to ASICs
- Single-device solution eliminates multi-chip complexity
- Long product lifecycle support from AMD Xilinx
Reliability and Quality
- Industrial-grade temperature range operation
- Comprehensive testing and quality assurance
- RoHS-compliant, environmentally friendly
- Proven reliability in high-volume production environments
Technical Considerations for System Designers
Power Management
Proper power supply design is critical:
- Core voltage: 1.71V to 1.89V (1.8V nominal)
- I/O voltage: Varies by selected I/O standard
- Decoupling capacitors required on all power pins
- Power sequencing considerations for reliable operation
Thermal Management
Operating within specified temperature ranges:
- Junction temperature: 0°C to 85°C (commercial grade)
- Thermal resistance varies by package and cooling method
- Heat sink may be required for high-utilization designs
- Power consumption estimation tools available in design software
PCB Design Guidelines
Critical layout considerations:
- 17mm x 17mm BGA footprint requires precise PCB manufacturing
- High-speed signal integrity considerations for I/O routing
- Proper ground plane design for noise immunity
- Power distribution network optimization
- Impedance-controlled routing for high-speed interfaces
Comparison with Alternative FPGA Solutions
Within Spartan-IIE Family
| Device |
Logic Cells |
System Gates |
Block RAM |
I/O Pins |
| XC2S50E |
1,728 |
50K-150K |
16K |
182 |
| XC2S100E |
2,700 |
100K-200K |
40K |
202 |
| XC2S150E |
3,456 |
150K-200K |
72K |
265 |
| XC2S300E |
6,912 |
300K |
64K |
182 |
| XC2S400E |
10,800 |
400K |
160K |
410 |
| XC2S600E |
15,552 |
600K |
288K |
514 |
Migration Path
Design scalability within the family:
- Pin-compatible options for easy design migration
- Common architecture enables code reuse
- Consistent development tools across all devices
- Straightforward upgrade path as requirements grow
Obsolescence and Lifecycle Information
Important Note: The XC2S300E-6FTG256C is currently marked as obsolete by the manufacturer. However:
- Inventory remains available through authorized distributors
- Legacy system support and maintenance continue
- Modern alternatives available in Spartan-7 or Artix-7 families
- Contact suppliers for long-term availability planning
- Consider design migration strategies for new projects
Quality Assurance and Authenticity
Sourcing Recommendations
When purchasing XC2S300E-6FTG256C devices:
- Buy from authorized Xilinx distributors
- Verify authentic packaging and markings
- Request certificates of conformance
- Beware of counterfeit components in the market
- Store devices in anti-static packaging
Warranty and Support
Most authorized distributors offer:
- Manufacturer’s warranty coverage
- Technical support services
- RMA procedures for defective units
- Quality guarantee programs
- Traceability documentation
Frequently Asked Questions (FAQ)
What is the difference between XC2S300E-6FTG256C and similar part numbers?
The speed grade (-6) indicates the fastest commercial-grade version. Alternative speed grades like -5 or -7 offer different performance-cost trade-offs.
Can this FPGA be reprogrammed in the field?
Yes, the XC2S300E-6FTG256C supports in-system reprogrammability through JTAG or serial configuration interfaces, allowing field upgrades without hardware replacement.
What development tools are required?
Xilinx ISE Design Suite is the primary development environment. Free WebPACK edition supports Spartan-IIE devices for basic designs.
Is this device suitable for new designs?
While technically capable, the obsolete status suggests considering newer alternatives like Spartan-7 for new projects. Existing designs can continue using available stock.
What is the typical lead time for ordering?
Lead times vary by distributor and stock availability. Check with authorized suppliers for current delivery schedules.
Conclusion: Why Choose XC2S300E-6FTG256C
The XC2S300E-6FTG256C represents a mature, proven FPGA solution that balances performance, features, and cost-effectiveness. With 300,000 system gates, 182 I/O pins, and advanced features like dual-port block RAM and DLL clock management, this device continues to serve legacy applications and cost-sensitive designs effectively.
While marked as obsolete, existing inventory provides ongoing support for maintenance and small-volume production. For new designs, consider modern equivalents while leveraging the extensive knowledge base and proven reliability of the Spartan-IIE architecture.
Whether you’re maintaining existing systems, developing cost-optimized solutions, or exploring FPGA technology, the XC2S300E-6FTG256C offers a compelling combination of capability and value in a compact, industry-standard package.
