Overview of XC5204-6PQ100C Field-Programmable Gate Array
The XC5204-6PQ100C is a powerful field-programmable gate array (FPGA) from the renowned Xilinx FPGA XC5200 family, now manufactured under AMD. This versatile FPGA delivers exceptional performance for digital circuit design, embedded systems, and signal processing applications. With 480 logic cells, 81 I/O pins, and a robust 5V operating voltage, the XC5204-6PQ100C stands as a reliable choice for engineers seeking cost-effective programmable logic solutions.
Key Technical Specifications
Core Performance Features
| Specification |
Value |
| Logic Elements/Cells |
480 |
| Equivalent Gate Count |
6,000 gates |
| Maximum Frequency |
83 MHz |
| Operating Voltage |
5V |
| Process Technology |
0.5μm CMOS |
| Package Type |
100-Pin PQFP (Plastic Quad Flat Pack) |
| Number of I/O Pins |
81 |
| Logic Blocks (LABs) |
120 |
Environmental & Operating Conditions
| Parameter |
Specification |
| Operating Temperature Range |
0°C to +85°C |
| Supply Voltage |
5V ±5% |
| Package Dimensions |
14mm × 14mm × 3.4mm |
| Lead Configuration |
Tin/Lead (Sn85/Pb15) |
| Mounting Type |
Surface Mount |
XC5204-6PQ100C Architecture and Design Features
VersaBlock Logic Module Technology
The XC5204-6PQ100C incorporates Xilinx’s innovative VersaBlock logic module architecture, delivering exceptional design flexibility. This SRAM-based reprogrammable platform enables rapid prototyping and iterative design modifications without requiring hardware changes. The architecture supports complex digital logic implementations while maintaining low power consumption characteristics.
VersaRing I/O Interface System
The advanced VersaRing I/O interface provides a high logic cell to I/O ratio, maximizing design efficiency. With programmable output slew-rate control, designers can optimize signal integrity while minimizing electromagnetic interference (EMI). The zero flip-flop hold time for input registers simplifies timing analysis and system-level design constraints.
Application Areas for XC5204-6PQ100C FPGA
Digital Circuit Design and Prototyping
| Application Category |
Implementation Details |
| Custom Logic Functions |
Implement proprietary algorithms and control logic |
| Interface Controllers |
Design custom communication protocols and bus interfaces |
| State Machines |
Create complex finite state machines for control systems |
| Arithmetic Operations |
Build specialized computational units and DSP functions |
Embedded System Integration
The XC5204-6PQ100C excels in embedded system applications where programmable logic enhances system flexibility. Common implementations include:
- Industrial Control Systems: Process monitoring, sensor interfacing, and actuator control
- Data Acquisition Systems: High-speed sampling, signal conditioning, and data formatting
- Communication Interfaces: Protocol conversion, data buffering, and timing control
- Test Equipment: Signal generation, pattern matching, and automated testing
Signal Processing Applications
Engineers leverage the XC5204-6PQ100C for real-time signal processing tasks requiring deterministic performance. The FPGA’s parallel processing capabilities enable implementation of:
- Digital filters (FIR, IIR)
- Fast Fourier Transform (FFT) operations
- Image processing algorithms
- Audio/video signal conditioning
Programming and Development Support
Compatible Design Tools
| Tool/Software |
Purpose |
Compatibility |
| Xilinx ISE Design Suite |
Legacy design entry, synthesis, and implementation |
Full support |
| ABEL |
Hardware description language |
Supported |
| Schematic Capture |
Visual design entry |
Supported |
| VHDL |
Industry-standard HDL |
Full synthesis support |
| Verilog HDL |
Alternative HDL option |
Full synthesis support |
Development Workflow
The XC5204-6PQ100C supports industry-standard FPGA development workflows across both workstation and PC platforms. Designers can utilize familiar development environments for design entry, synthesis, place-and-route, and timing analysis.
Package and Pin Configuration Details
100-Pin PQFP Package Characteristics
The compact 100-pin PQFP (Plastic Quad Flat Pack) package offers several advantages:
- Space-Efficient Footprint: 14mm × 14mm body size ideal for compact PCB designs
- Standard SMT Assembly: Compatible with automated pick-and-place equipment
- Thermal Performance: Adequate heat dissipation for typical operating conditions
- Pin Accessibility: 0.5mm pin pitch facilitates board-level testing and rework
I/O Pin Distribution
| I/O Characteristic |
Specification |
| Total User I/O |
81 pins |
| Dedicated I/O Banks |
Multiple banks for flexible voltage interfacing |
| Configuration Pins |
Dedicated programming interface |
| Power/Ground Pins |
Distributed for low impedance power distribution |
Performance Characteristics and Timing
Speed Grade and Propagation Delays
The “-6” speed grade designation indicates the XC5204-6PQ100C’s timing performance class:
- Typical Propagation Delay: 5.6 nanoseconds
- Maximum Operating Frequency: 83 MHz
- Setup Time: Optimized for synchronous designs
- Clock-to-Output Delay: Minimized for low-latency applications
Clock Distribution Network
The internal clock distribution network ensures low-skew clock delivery across all logic blocks, critical for high-speed synchronous designs. Multiple global clock buffers support complex clocking schemes and clock domain crossing implementations.
XC5204-6PQ100C vs. Modern FPGA Alternatives
Comparison with Contemporary Options
| Feature |
XC5204-6PQ100C |
Modern Alternatives |
| Process Technology |
0.5μm |
28nm – 7nm |
| Operating Voltage |
5V |
1.0V – 1.8V |
| Logic Density |
480 cells |
10K – 1M+ cells |
| Best Use Case |
Legacy system maintenance, 5V interfacing |
New high-performance designs |
When to Choose XC5204-6PQ100C
Despite being from an older generation, the XC5204-6PQ100C remains relevant for:
- Legacy System Support: Maintaining existing equipment and infrastructure
- 5V Logic Interfacing: Direct compatibility with 5V TTL/CMOS logic families
- Cost-Sensitive Applications: Lower unit cost for simple logic functions
- Educational Purposes: Teaching FPGA fundamentals without complex toolchains
Procurement and Availability Information
Current Market Status
| Status Indicator |
Details |
| Lifecycle Status |
Obsolete (last updated 1 month ago) |
| Availability |
Available through specialty distributors |
| Lead Time |
Varies by distributor (typically 2-7 business days) |
| Quality Assurance |
New and original parts with warranty coverage |
Recommended Distributors
While the XC5204-6PQ100C is classified as obsolete by the manufacturer, reputable electronics distributors maintain inventory for ongoing projects and replacement applications. Purchasers should verify:
- Authentic AMD/Xilinx parts (not counterfeit)
- Date codes and storage conditions
- Warranty coverage (typically 90-365 days)
- Return/replacement policies
Design Considerations and Best Practices
Power Supply Design
For optimal XC5204-6PQ100C performance, implement these power supply guidelines:
Voltage Regulation Requirements:
- Provide stable 5V ±5% supply voltage
- Use low-ESR bulk capacitors (100μF minimum)
- Place 0.1μF ceramic bypass capacitors near each power pin
- Implement separate analog and digital ground planes where applicable
Configuration and Programming
The XC5204-6PQ100C supports multiple configuration modes:
- Master Serial Mode: FPGA controls external PROM
- Slave Serial Mode: External controller manages configuration
- Boundary Scan (JTAG): In-system programming and debugging
PCB Layout Recommendations
| Layout Consideration |
Recommendation |
| Trace Impedance |
50-75Ω for high-speed signals |
| Layer Stack-up |
Minimum 4-layer PCB for complex designs |
| Thermal Management |
Ensure adequate airflow or heatsinking |
| Signal Integrity |
Length-match critical timing paths |
Troubleshooting and Technical Support
Common Design Challenges
Issue: Configuration Failures
- Verify power supply sequencing
- Check programming cable connections
- Validate bitstream integrity
- Ensure proper pull-up/pull-down resistors on configuration pins
Issue: Timing Violations
- Optimize placement constraints
- Review critical path analysis
- Consider pipeline insertion for high-frequency paths
- Verify clock network implementation
Issue: I/O Compatibility
- Confirm voltage level matching with external devices
- Add level shifters for 3.3V or lower voltage interfaces
- Check I/O standard configuration in design tools
Quality Assurance and Reliability
Manufacturing Quality Standards
AMD/Xilinx manufactures the XC5204-6PQ100C using stringent quality control processes:
- Process Control: Statistical process control (SPC) monitoring
- Testing: 100% functional testing at speed grade specifications
- Environmental Screening: Temperature cycling and burn-in for enhanced reliability
- Traceability: Lot-level tracking for quality assurance
Reliability Metrics
| Reliability Parameter |
Specification |
| MTBF |
>1,000,000 hours |
| Operating Lifetime |
20+ years under normal conditions |
| ESD Protection |
Human Body Model (HBM) 2kV minimum |
| Latch-up Immunity |
JEDEC Class II |
Environmental Compliance and RoHS Status
Lead Content and RoHS
The standard XC5204-6PQ100C uses Tin/Lead (Sn85/Pb15) termination, which is not RoHS compliant. For RoHS-compliant alternatives:
- Consult AMD/Xilinx for lead-free part number variants
- Verify compliance requirements for your target market
- Consider exemptions for legacy equipment replacement
Handling and Storage
Moisture Sensitivity Level (MSL): Level 3
- Maximum floor life: 168 hours after bag opening
- Baking requirements: 125°C for 24 hours if exposure exceeded
- Storage conditions: <30°C, <60% relative humidity in sealed bag
Cost-Effectiveness and ROI Analysis
Total Cost of Ownership
| Cost Component |
Consideration |
| Unit Price |
Lower than modern FPGAs for equivalent gate count |
| Development Tools |
Legacy ISE tools available at no cost |
| Design Time |
Simpler architecture reduces learning curve |
| Manufacturing |
Standard SMT assembly, no special requirements |
| Maintenance |
Widely documented, extensive community support |
When XC5204-6PQ100C Provides Best Value
The XC5204-6PQ100C delivers optimal return on investment for:
- Replacement parts in existing systems
- Low-to-medium complexity logic functions
- Educational and training applications
- Products with extended service lifetimes
- Applications requiring 5V I/O compatibility
Migration Path and Upgrade Options
Recommended Replacement FPGAs
For new designs or system upgrades, consider these alternatives:
Direct Functional Replacements:
- XC7A35T: Artix-7 family, significantly higher performance
- ECP5-12K: Lattice low-power alternative with modern features
- Intel MAX 10: Non-volatile configuration, integrated ADC
Migration Considerations:
- HDL code typically portable with minor modifications
- I/O voltage translation may be required (5V to 1.8V/3.3V)
- Take advantage of modern features (DSP blocks, memory blocks)
- Evaluate power consumption improvements
Conclusion
The XC5204-6PQ100C FPGA represents proven technology for digital logic implementation, particularly in legacy system support and 5V interfacing applications. With 480 logic cells, 81 I/O pins, and comprehensive development tool support, this FPGA continues serving engineers who require reliable, cost-effective programmable logic solutions.
While classified as obsolete by modern standards, the XC5204-6PQ100C maintains relevance in specialized applications where its 5V operation, robust architecture, and established design ecosystem provide distinct advantages. For engineers maintaining existing systems or implementing straightforward logic functions, this FPGA delivers dependable performance backed by decades of field-proven reliability.
Whether you’re designing new equipment compatible with legacy infrastructure, replacing failed components in critical systems, or exploring FPGA technology for educational purposes, the XC5204-6PQ100C offers a practical, well-documented platform supported by extensive community knowledge and readily available technical resources.
