Overview of XCS10XL-4VQG100I FPGA
The XCS10XL-4VQG100I is a sophisticated Field-Programmable Gate Array (FPGA) from AMD’s (formerly Xilinx) renowned Spartan-XL family, designed to deliver cost-effective, high-performance programmable logic solutions for demanding industrial and commercial applications. This versatile FPGA combines 10,000 system gates with 466 configurable logic blocks, making it an ideal choice for ASIC replacement and high-volume production environments.
As part of the legacy Spartan-XL series, the XCS10XL-4VQG100I represents proven technology that continues to serve critical applications in communications equipment, wireless infrastructure, industrial automation, medical devices, and enterprise systems. The device operates at 3.3V and comes in a compact 100-pin VQFP (Very Thin Quad Flat Pack) package, offering excellent board space efficiency.
Key Specifications and Technical Features
Core Architecture
| Parameter |
Specification |
| Logic Cells |
466 CLBs (Configurable Logic Blocks) |
| System Gates |
10,000 gates |
| Typical Gate Range |
3,000 to 10,000 gates |
| CLB Array |
14 x 14 matrix |
| Flip-Flops |
616 |
| Maximum User I/O |
77 I/O pins |
| Total Equivalent Gates |
6,272 |
Performance Characteristics
| Feature |
Value |
| Speed Grade |
-4 (Commercial) |
| Maximum Clock Frequency |
217 MHz internal performance |
| System Clock Rate |
Exceeds 80 MHz |
| Operating Voltage |
3.3V (VCC) |
| Temperature Range |
Industrial (-40°C to +100°C) |
| Package Type |
100-pin VQFP/VTQFP |
| Pin Pitch |
0.5mm |
XCS10XL-4VQG100I Architecture and Design Features
Programmable Logic Architecture
The XCS10XL-4VQG100I utilizes a regular, flexible programmable architecture consisting of Configurable Logic Blocks (CLBs) interconnected through a sophisticated hierarchy of versatile routing resources. Each CLB contains combinational logic and storage elements that can be configured to implement various logic functions, registers, and memory elements.
The device features:
- 196 RAM bits for efficient on-chip data storage
- JTAG Boundary-Scan support (IEEE 1149.1/1532) for simplified programming, prototyping, and testing
- Unlimited reprogrammability allowing design iterations without hardware changes
- In-System Programming capability through compatible PROMs
- Express Mode for rapid configuration
Package Details
| Package Specification |
Details |
| Package Type |
VQFP-100 (Very Thin Quad Flat Pack) |
| Package Material |
Plastic, RoHS Compliant |
| Dimensions |
14mm x 14mm body size |
| Terminal Form |
Gull wing leads |
| Terminal Count |
100 pins |
| Mounting Type |
Surface mount |
Applications and Use Cases
The XCS10XL-4VQG100I excels in various demanding applications:
Industrial Automation
- Programmable logic controllers (PLCs)
- Motor control systems
- Factory automation equipment
- Process control systems
Communications Infrastructure
- Protocol conversion
- Data routing and switching
- Signal processing
- Network interface controllers
Medical Equipment
- Diagnostic equipment
- Patient monitoring systems
- Medical imaging devices
- Laboratory instruments
Consumer Electronics
- Digital video processing
- Audio/video equipment
- Gaming systems
- Display controllers
Enterprise Systems
- Data center equipment
- Server infrastructure
- Enterprise computing
- Storage systems
Why Choose XCS10XL-4VQG100I for Your Design
Cost-Effective ASIC Alternative
The XCS10XL-4VQG100I offers compelling advantages over traditional mask-programmed ASICs, delivering equivalent functionality at significantly lower initial costs and reduced time-to-market. By eliminating NRE (Non-Recurring Engineering) charges and lengthy fabrication cycles, this Xilinx FPGA enables rapid prototyping and production deployment.
Design Flexibility Benefits
Engineers appreciate the XCS10XL-4VQG100I for its:
- Field Upgradeability: Update logic functions after deployment
- Rapid Prototyping: Test and validate designs quickly
- Design Security: Built-in configuration security features
- Lower Risk: Avoid costly mask errors inherent in ASICs
- Version Control: Easily manage multiple product variants
Technical Advantages
| Advantage |
Description |
| High Integration |
Consolidate multiple discrete logic devices into single chip |
| Performance |
Internal speeds exceeding 150 MHz for complex operations |
| Power Management |
Power-down modes for energy-efficient operation |
| Proven Reliability |
Mature technology with extensive field deployment history |
| Tool Support |
Compatible with Xilinx ISE Design Suite |
Design Resources and Support
Development Tools
The XCS10XL-4VQG100I is supported by comprehensive development tools:
- Xilinx ISE Design Suite: Complete design environment for synthesis, implementation, and simulation
- HDL Support: Compatible with VHDL and Verilog design entry
- Simulation Tools: Functional and timing simulation capabilities
- Programming Solutions: Multiple configuration options including JTAG
Documentation Available
- Complete datasheet with AC/DC specifications
- Application notes for optimal design practices
- Reference designs and IP cores
- PCB layout guidelines and footprints
- CAD symbols and models
XCS10XL-4VQG100I vs. Modern Alternatives
Legacy Status Considerations
While the XCS10XL-4VQG100I is classified as an obsolete product by AMD (formerly Xilinx), it remains widely specified in existing designs and continues to be available through authorized distributors and electronics suppliers. For new designs, engineers should consider:
Advantages of Continued Use:
- Drop-in replacement for existing designs
- Well-understood characteristics and behavior
- Lower per-unit costs for high-volume production
- Extensive application knowledge base
Modern Alternatives to Consider:
- Spartan-6 family for enhanced performance
- Spartan-7 series for latest technology
- Artix-7 FPGAs for advanced applications
- Cost-optimized newer devices with better power efficiency
Compliance and Quality Standards
Environmental Compliance
| Standard |
Status |
| RoHS Compliance |
Yes (Lead-free) |
| REACH Compliance |
Verified |
| Conflict Minerals |
Compliant |
| ECCN Code |
EAR99 |
Quality Assurance
- 100% Functional Testing: All devices undergo comprehensive testing
- Production Screening: Industrial temperature range validation
- Reliability Standards: Meets JEDEC specifications
- Traceability: Full lot traceability maintained
Ordering Information and Availability
Part Number Breakdown
XCS10XL-4VQG100I decodes as:
- XCS10XL: Spartan-XL family, 10,000 gates
- -4: Speed grade (commercial)
- VQG100: Very Thin Quad Flat Pack, Green (RoHS), 100 pins
- I: Industrial temperature range (-40°C to +100°C)
Package Options in Same Family
| Part Number |
Package |
Temperature |
Speed Grade |
| XCS10XL-4VQG100C |
VQFP-100 |
Commercial (0°C to +70°C) |
-4 |
| XCS10XL-4VQG100I |
VQFP-100 |
Industrial (-40°C to +100°C) |
-4 |
| XCS10XL-4TQG144C |
TQFP-144 |
Commercial |
-4 |
| XCS10XL-4PC84C |
PLCC-84 |
Commercial |
-4 |
Technical Support and Resources
Getting Started Guide
Step 1: Download Xilinx ISE Design Suite (legacy versions support Spartan-XL)
Step 2: Review the Spartan-XL family datasheet and application notes
Step 3: Create or import your HDL design files
Step 4: Set device constraints and pin assignments for 100-pin VQFP package
Step 5: Synthesize, implement, and generate programming file
Step 6: Program device via JTAG or configure from PROM
Common Design Tips
- Reserve adequate decoupling capacitance near VCC pins (0.1µF and 10µF recommended)
- Use proper PCB layout techniques for high-speed signals
- Implement clock management best practices
- Consider signal integrity for high-speed I/O
- Follow Xilinx thermal management guidelines
Frequently Asked Questions
Q: Is the XCS10XL-4VQG100I still in production?
The device is classified as obsolete by AMD/Xilinx but remains available through distributors and authorized channels for existing designs and legacy product support.
Q: What development tools support this FPGA?
The XCS10XL-4VQG100I is supported by Xilinx ISE Design Suite (versions 6.x through 14.x). The device is not compatible with Vivado Design Suite.
Q: Can I use this FPGA in new designs?
While functional and available, designers should evaluate modern alternatives for new projects. The XCS10XL is best suited for legacy design support and cost-sensitive applications where migration is not feasible.
Q: What is the typical power consumption?
Power consumption varies based on design utilization, clock frequency, and I/O activity. Typical static current at 3.3V is approximately 10-30mA, with dynamic power depending on design complexity.
Q: Are there pin-compatible alternatives?
The Spartan-XL family offers several package options, but direct pin-compatible upgrades to newer families may require design modifications. Consult AMD/Xilinx migration guides for specific alternatives.
Conclusion: XCS10XL-4VQG100I – Reliable FPGA Solution
The XCS10XL-4VQG100I represents a proven, cost-effective FPGA solution for applications requiring moderate gate counts, industrial temperature operation, and reliable performance. With its 10,000 system gates, 77 I/O pins, and compact 100-pin VQFP package, this Xilinx FPGA continues to serve critical roles in industrial automation, communications infrastructure, medical equipment, and enterprise systems.
While newer FPGA families offer enhanced capabilities and improved power efficiency, the XCS10XL-4VQG100I remains an excellent choice for legacy design support, cost-sensitive applications, and situations where proven reliability outweighs the need for cutting-edge features. Its unlimited reprogrammability, comprehensive development tool support, and RoHS-compliant green packaging make it a practical solution for engineers maintaining existing products or developing designs where the Spartan-XL’s capabilities align perfectly with project requirements.
For designers requiring this component or seeking technical guidance on Spartan-XL FPGAs, authorized distributors and AMD/Xilinx legacy support channels provide ongoing availability and technical resources to ensure successful product deployment and long-term support.
