Overview of XC2S100E-6FGG456C FPGA
The XC2S100E-6FGG456C is a high-performance field-programmable gate array (FPGA) from Xilinx’s Spartan-IIE family, designed to deliver cost-effective programmable logic solutions for embedded systems and digital circuit applications. This 456-pin FBGA package device features 100,000 system gates and operates at 1.8V, making it an ideal choice for power-sensitive applications requiring moderate logic capacity.
XC2S100E-6FGG456C Technical Specifications
Understanding the technical capabilities of the XC2S100E-6FGG456C helps engineers make informed decisions for their design projects.
| Specification |
Details |
| Part Number |
XC2S100E-6FGG456C |
| Manufacturer |
Xilinx (now AMD Xilinx) |
| FPGA Family |
Spartan-IIE 1.8V |
| System Gates |
100,000 gates |
| Logic Cells |
2,700 cells |
| Maximum Frequency |
357 MHz |
| Process Technology |
0.15 micron (150nm) |
| Core Voltage |
1.8V |
| Package Type |
456-Pin FBGA (Fine-Pitch Ball Grid Array) |
| Operating Temperature |
Commercial (0°C to +85°C) |
| Speed Grade |
-6 (standard performance) |
Key Features of Spartan-IIE XC2S100E-6FGG456C
Advanced Architecture and Design
The XC2S100E-6FGG456C incorporates second-generation ASIC replacement technology with streamlined features based on the proven Virtex-E FPGA architecture. This Xilinx FPGA delivers exceptional performance while maintaining low power consumption and cost efficiency.
Programmable Logic Resources
| Resource Type |
XC2S100E-6FGG456C Capacity |
| Configurable Logic Blocks (CLBs) |
2,700 logic cells |
| System Gates |
100,000 gates |
| Distributed RAM |
Available in CLBs |
| Block SelectRAM |
Hierarchical memory architecture |
| I/O Pins |
Multiple I/O options |
| User I/O |
Varies by package configuration |
Memory and Storage Capabilities
The XC2S100E-6FGG456C features SelectRAM hierarchical memory, providing flexible on-chip storage solutions:
- Distributed RAM: Embedded within CLBs for fast, localized storage
- Block RAM: Dedicated memory blocks for larger data storage requirements
- Dual-Port RAM Support: Enables simultaneous read/write operations
- Configuration Memory: 863,840 bits total configuration data
XC2S100E-6FGG456C Performance Characteristics
Clock Speed and Timing
The XC2S100E-6FGG456C operates at frequencies up to 357 MHz, delivering high-speed performance for demanding applications. The -6 speed grade indicates standard performance characteristics suitable for most commercial applications.
Power Consumption Profile
| Power Parameter |
Typical Value |
| Core Voltage |
1.8V |
| I/O Voltage |
1.8V to 3.3V (configurable) |
| Static Power |
Low standby current |
| Dynamic Power |
Depends on design utilization |
| Power Technology |
0.15µm CMOS process |
Applications for XC2S100E-6FGG456C FPGA
Industrial Control Systems
The XC2S100E-6FGG456C excels in industrial automation, providing reliable programmable logic for:
- Motor control systems
- Process automation controllers
- Factory automation equipment
- Industrial communication protocols
- Safety-critical control systems
Communications Equipment
With its high-speed capabilities, this FPGA is ideal for:
- Digital signal processing
- Protocol converters
- Network interface controllers
- Telecommunications infrastructure
- Data acquisition systems
Consumer Electronics
The low power consumption makes the XC2S100E-6FGG456C suitable for:
- Digital video processing
- Audio processing applications
- Embedded system controllers
- Smart home devices
- Portable electronics
Programming and Development Tools
ISE Design Suite Compatibility
The XC2S100E-6FGG456C is supported by Xilinx ISE Design Suite, providing comprehensive development tools including:
- Synthesis Tools: Convert HDL code to netlist format
- Implementation Tools: Place and route design resources
- Simulation Environment: Verify design functionality
- Timing Analysis: Ensure timing requirements are met
- BitGen Configuration: Generate programming files
Hardware Description Language Support
| HDL Type |
Description |
| VHDL |
IEEE standard hardware description language |
| Verilog |
Popular HDL for digital design |
| Schematic Entry |
Graphical design capture method |
| EDIF Netlist |
Electronic Design Interchange Format |
Package Information: 456-Pin FBGA
Physical Dimensions and Layout
The Fine-Pitch Ball Grid Array (FBGA) package provides:
- Total Pins: 456 balls
- Package Size: Compact footprint for PCB design
- Ball Pitch: Fine-pitch spacing for high-density routing
- Thermal Performance: Enhanced heat dissipation
- Mounting: Surface-mount technology (SMT)
PCB Design Considerations
| Design Aspect |
Recommendation |
| Layer Count |
Minimum 6-layer PCB recommended |
| Via Technology |
Microvias for dense routing |
| Power Planes |
Dedicated 1.8V and 3.3V planes |
| Decoupling |
Multiple bypass capacitors near power pins |
| Thermal Management |
Consider thermal vias and heatsinks |
Configuration Options for XC2S100E-6FGG456C
Configuration Modes
The XC2S100E-6FGG456C supports multiple configuration methods:
- Master Serial Mode: FPGA generates configuration clock
- Slave Serial Mode: External source provides clock
- Master Parallel Mode: Parallel data loading
- Slave Parallel Mode: High-speed parallel configuration
- JTAG Configuration: Boundary-scan based programming
Configuration Memory Requirements
| Parameter |
Value |
| Configuration Bits |
863,840 bits |
| Default CCLK Frequency |
4 MHz |
| Maximum CCLK Frequency |
Configurable via ConfigRate |
| Power-Up CCLK |
2.5 MHz (first 60 bytes) |
| Configuration Time |
Depends on mode and clock speed |
Comparison with Related Xilinx FPGAs
Spartan-IIE Family Comparison
| Model |
System Gates |
Logic Cells |
Configuration Bits |
| XC2S100E |
100,000 |
2,700 |
863,840 |
| XC2S150E |
150,000 |
3,840 |
1,134,496 |
| XC2S200E |
200,000 |
5,292 |
1,442,016 |
| XC2S300E |
300,000 |
6,912 |
1,875,648 |
| XC2S400E |
400,000 |
10,800 |
2,693,440 |
| XC2S600E |
600,000 |
15,552 |
3,961,632 |
Design Implementation Best Practices
Optimization Strategies
To maximize performance of the XC2S100E-6FGG456C:
- Resource Utilization: Efficiently use CLBs and block RAM
- Clock Domain Management: Minimize clock domain crossings
- Timing Constraints: Define accurate timing requirements
- I/O Standards: Select appropriate voltage standards
- Power Optimization: Implement clock gating where possible
Timing Closure Techniques
| Technique |
Benefit |
| Pipelining |
Increases maximum frequency |
| Register Replication |
Reduces fanout delays |
| Logic Optimization |
Minimizes combinational depth |
| Placement Constraints |
Controls critical path routing |
| Clock Buffers |
Reduces clock skew |
Reliability and Longevity
Product Lifecycle Status
Important Note: The Spartan-IIE family, including the XC2S100E-6FGG456C, has been marked as obsolete by Xilinx and is not recommended for new designs. However, the device remains suitable for:
- Legacy system maintenance
- Replacement and repair applications
- Existing product support
- Long-term inventory planning
Recommended Alternatives
For new designs, consider these modern alternatives:
| Alternative Series |
Key Advantages |
| Spartan-7 |
Lower power, higher performance |
| Artix-7 |
Enhanced DSP and memory |
| Zynq-7000 |
Integrated ARM processor |
Quality and Compliance Standards
Manufacturing Quality
The XC2S100E-6FGG456C adheres to:
- ISO 9001 quality management systems
- Industry-standard reliability testing
- Comprehensive quality assurance protocols
- Rigorous electrical testing procedures
Environmental Compliance
| Standard |
Status |
| RoHS |
Compliant versions available |
| REACH |
EU regulations compliance |
| Conflict Minerals |
Reporting available |
| Green Products |
Environmental documentation |
Purchasing and Availability
Authorized Distributors
The XC2S100E-6FGG456C can be sourced through:
- Electronic component distributors
- Authorized Xilinx/AMD partners
- Specialized FPGA suppliers
- Online electronics marketplaces
Pricing Considerations
Pricing factors include:
- Order quantity (volume discounts available)
- Lead times and availability
- Package options and speed grades
- Market conditions and demand
- Obsolescence status
Technical Support and Resources
Documentation Available
| Resource Type |
Description |
| Datasheet |
Complete electrical specifications |
| User Guide |
Detailed architecture information |
| Application Notes |
Design implementation guidance |
| Reference Designs |
Example projects and code |
| Errata |
Known issues and workarounds |
Design Support Services
Engineers working with the XC2S100E-6FGG456C can access:
- Technical forums and communities
- Application engineering support
- Training materials and webinars
- Design consultation services
- Migration guides for alternative devices
Frequently Asked Questions
What is the difference between XC2S100E and XC2S100?
The XC2S100E belongs to the Spartan-IIE family with 1.8V core voltage and 0.15µm technology, while the XC2S100 is from the older Spartan-II family with 2.5V core voltage and 0.18µm technology. The “E” version offers lower power consumption and improved performance.
Can XC2S100E-6FGG456C be used in new designs?
While technically capable, this device is obsolete and not recommended for new designs. Xilinx suggests migrating to newer families like Spartan-7 or Artix-7 for better performance, support, and long-term availability.
What programming cable is required?
The XC2S100E-6FGG456C can be programmed using Xilinx Platform Cable USB or compatible JTAG programmers that support IEEE 1149.1 boundary-scan standard.
What is the typical power consumption?
Power consumption varies based on design utilization, clock frequencies, and I/O activity. The 1.8V core voltage significantly reduces power compared to previous generations, typically ranging from 100mW to several watts depending on application.
Conclusion: Is XC2S100E-6FGG456C Right for Your Project?
The XC2S100E-6FGG456C represents proven FPGA technology suitable for moderate-complexity applications requiring 100,000 system gates. While marked as obsolete for new designs, it remains a viable solution for legacy system support, replacement applications, and cost-sensitive projects with existing design infrastructure.
For engineers maintaining existing systems, the XC2S100E-6FGG456C offers reliable performance with extensive documentation and established design methodologies. However, new projects should consider modern alternatives that provide enhanced features, better development tools, and long-term product support.
When selecting an FPGA for your application, evaluate factors including logic capacity requirements, I/O count, performance specifications, power budget, package constraints, and long-term availability to ensure the best fit for your specific needs.
