Overview of the XC5202-6PC84C FPGA
The XC5202-6PC84C is a high-performance Field Programmable Gate Array (FPGA) from AMD Xilinx’s renowned XC5200 series. This programmable logic device delivers exceptional flexibility for embedded system designs, offering 3,000 usable gates with 256 logic cells in a compact 84-pin PLCC package. Originally manufactured by Xilinx (now AMD), this FPGA represents a cost-effective solution for applications requiring reconfigurable digital logic.
This <a href=”https://pcbsync.com/xilinx-fpga/”>Xilinx FPGA</a> leverages advanced SRAM-based architecture, enabling unlimited reprogrammability for prototyping, production, and field updates. The XC5202-6PC84C operates on a 5V supply and features 0.5µm three-layer metal CMOS process technology, making it suitable for industrial, commercial, and educational applications.
Key Technical Specifications
Electrical and Performance Characteristics
| Parameter |
Specification |
| Logic Cells |
256 cells |
| Usable Gates |
3,000 gates (2,000 typical) |
| Maximum Frequency |
83 MHz |
| Supply Voltage |
5V |
| Process Technology |
0.5µm CMOS |
| Metal Layers |
Three-layer metal |
| Propagation Delay |
5.6 ns (typical) |
| Operating Temperature |
0°C to 85°C (Commercial Grade) |
Package and Pin Configuration
| Feature |
Details |
| Package Type |
84-Pin PLCC (Plastic Leaded Chip Carrier) |
| Package Code |
PC84C |
| Terminal Form |
J-Lead |
| Package Dimensions |
29.31mm × 29.31mm (square) |
| Pin Pitch |
5.08mm (0.2 inches) |
| Lead Material |
Tin/Lead (Sn85Pb15) |
| Number of Terminals |
84 pins |
XC5202-6PC84C Architecture and Features
VersaBlock Logic Module
The XC5202-6PC84C incorporates Xilinx’s innovative VersaBlock architecture, featuring:
- 64 Configurable Logic Blocks (CLBs) arranged in an efficient array
- Each CLB contains multiple function generators and storage elements
- D-type flip-flops or transparent latches for flexible timing control
- Dedicated carry logic for high-speed arithmetic operations
- Fast cascade connections for complex combinatorial functions
VersaRing I/O Interface
The advanced VersaRing I/O interface provides:
- High logic cell-to-I/O ratio for optimal pin utilization
- Up to 65 bidirectional I/O pins
- Programmable output slew-rate control to minimize signal noise
- 8mA source and sink current capability per I/O pin
- Zero flip-flop hold time for simplified system timing
- IEEE 1149.1 boundary scan support for enhanced testability
Programmable Interconnect Resources
The XC5202-6PC84C features a sophisticated interconnect hierarchy:
- Longlines for high-speed signal distribution across the device
- Segment routing for localized connections between adjacent CLBs
- Direct connections between IOBs and internal logic blocks
- Programmable routing matrix for maximum design flexibility
Configuration and Programming
Configuration Modes
The XC5202-6PC84C supports multiple configuration modes:
| Mode |
Description |
Use Case |
| Master Serial |
FPGA controls configuration clock |
Stand-alone systems |
| Slave Serial |
External device provides clock |
Processor-based systems |
| Master Parallel |
Parallel data loading with internal clock |
Fast configuration |
| Slave Parallel |
External control with parallel data |
Microprocessor interface |
Configuration Features
- Internal oscillator running at nominal 12 MHz frequency
- Selectable CCLK frequencies: 1 MHz (default), 6 MHz, or 12 MHz
- Dedicated configuration pins with weak pull-up resistors
- PROGRAM pin for configuration reset
- DONE pin for configuration completion indication
- Readback capability for design verification
Development and Design Support
Compatible Design Tools
The XC5202-6PC84C is fully supported by industry-standard FPGA development tools:
- Xilinx ISE Design Suite for synthesis and implementation
- Vivado Design Suite (legacy support)
- Schematic capture tools
- VHDL and Verilog HDL synthesis
- ABEL hardware description language
Design Entry Methods
Engineers can implement designs using various methodologies:
- HDL-based design (VHDL/Verilog) for complex systems
- Schematic capture for visual circuit design
- State machine editors for control logic
- IP cores and library macros for common functions
Applications and Use Cases
Industrial and Embedded Systems
The XC5202-6PC84C excels in applications requiring:
- Digital signal processing with arithmetic operations
- Custom interface controllers for proprietary protocols
- Glue logic replacement consolidating multiple discrete ICs
- Prototype development before ASIC production
- Legacy system upgrades maintaining hardware compatibility
Educational and Research
This FPGA serves as an excellent platform for:
- Digital logic education and laboratory experiments
- FPGA architecture learning with manageable complexity
- Embedded systems coursework
- Research prototyping with moderate gate count requirements
Technical Advantages and Benefits
Cost-Effective Solution
| Advantage |
Benefit |
| SRAM-based reprogrammability |
Unlimited design iterations without device replacement |
| Register-rich architecture |
Reduced external component count |
| 3,000 usable gates |
Sufficient capacity for mid-complexity designs |
| Standard PLCC package |
Compatible with existing PCB layouts and sockets |
Performance Characteristics
- 83 MHz maximum operating frequency enables real-time processing
- 5.6 ns propagation delay supports high-speed data paths
- Zero hold time on input registers simplifies timing closure
- Programmable slew rate reduces EMI and crosstalk
Packaging and Reliability
Environmental Specifications
| Parameter |
Rating |
| Storage Temperature |
-65°C to +150°C |
| Junction Temperature (TJ) |
0°C to 85°C (Commercial) |
| Moisture Sensitivity Level |
MSL 3 |
| ESD Protection |
Human Body Model compliant |
Quality and Compliance
- Manufactured using automotive-grade quality processes
- RoHS compliance status: Non-compliant (contains lead in package)
- Meets JEDEC standards for PLCC packaging
- Compatible with standard reflow and wave soldering processes
Pin Description and Functional Overview
Power and Ground Pins
The XC5202-6PC84C requires proper power distribution:
- VCC pins: Connect to +5V regulated supply
- GND pins: Multiple ground pins for low impedance
- Decoupling capacitors recommended near each VCC/GND pair
Configuration Pins
| Pin Name |
Function |
| PROGRAM |
Active-low configuration reset |
| INIT |
Initialization status indicator |
| DONE |
Configuration completion signal |
| MODE[2:0] |
Configuration mode selection |
| CCLK |
Configuration clock |
| DIN |
Serial configuration data input |
I/O and Logic Pins
- User I/O: 65 available pins for application-specific connections
- Global clocks: Dedicated low-skew clock distribution networks
- Global reset (GR): Asynchronous reset to all flip-flops
- Global tri-state (GTS): Controls all tri-state buffers simultaneously
Comparison with Related XC5200 Family Devices
XC5200 Series Device Selection
| Device |
Logic Cells |
Gates |
CLBs |
I/O Pins |
Package Options |
| XC5202 |
256 |
3,000 |
64 |
65 |
PQ100, PC84 |
| XC5204 |
466 |
5,000 |
100 |
117 |
PG156, PQ208 |
| XC5206 |
784 |
8,000 |
196 |
169 |
BG225, PQ240 |
| XC5210 |
1,408 |
15,000 |
324 |
217 |
BG352 |
The XC5202-6PC84C is ideal for designs requiring moderate logic density with a balance between functionality and cost.
Design Considerations and Best Practices
Power Supply Requirements
To ensure reliable operation of the XC5202-6PC84C:
- Provide clean 5V ±5% regulated power supply
- Use 0.1µF ceramic capacitors at each VCC/GND pin pair
- Add 10µF bulk capacitance per device near the FPGA
- Implement proper power plane design on PCB
Thermal Management
- Calculate junction temperature based on ambient and power dissipation
- Ensure adequate airflow in enclosed systems
- Consider heat sinks for high-utilization designs
- Monitor internal temperature during operation
Signal Integrity
Best practices for maintaining signal quality:
- Controlled impedance traces for high-speed signals
- Ground planes to reduce EMI and crosstalk
- Series termination resistors on fast output signals
- Proper trace routing to minimize reflections
Availability and Lifecycle Status
Current Market Status
Lifecycle Status: Obsolete (End of Life)
The XC5202-6PC84C has been discontinued by the manufacturer, with last production occurring several years ago. However, this device remains available through:
- Authorized distributors with remaining inventory
- Electronic component brokers specializing in obsolete parts
- Surplus and excess inventory suppliers
Alternative and Replacement Options
For new designs, consider these modern alternatives:
- Spartan-3E Family – Direct successor with enhanced features
- Spartan-6 Family – Improved performance and lower power
- Artix-7 Family – Latest 7-series architecture with advanced capabilities
Ordering Information and Part Number Breakdown
Part Number Decoding: XC5202-6PC84C
| Component |
Meaning |
| XC |
Xilinx programmable logic device |
| 5202 |
Device family (XC5200) and density (2,000 gates) |
| -6 |
Speed grade (-6 = 83 MHz maximum) |
| PC |
Package type (Plastic Chip Carrier) |
| 84 |
Pin count (84 pins) |
| C |
Commercial temperature range (0°C to 85°C) |
Available Speed Grades
The XC5202 is offered in different speed grades:
- -6: Standard performance (83 MHz)
- -5: Higher performance variant
- -4: Maximum performance option
Frequently Asked Questions
Is the XC5202-6PC84C RoHS compliant?
No, the XC5202-6PC84C contains tin/lead (Sn85Pb15) in its package termination and is not RoHS compliant. For lead-free alternatives, consult newer FPGA families.
Can I use 3.3V I/O with the XC5202-6PC84C?
The device operates on 5V core and I/O voltage. Direct interfacing with 3.3V systems requires level translation circuits to prevent device damage.
What software do I need to program this FPGA?
Xilinx ISE Design Suite (version 14.7 or earlier) provides complete support for the XC5200 family, including synthesis, implementation, and programming tools.
How many logic levels can fit in one CLB?
Each Configurable Logic Block contains multiple function generators that can implement up to 4-input logic functions with dedicated carry logic for arithmetic operations.
Conclusion
The XC5202-6PC84C Field Programmable Gate Array represents proven FPGA technology suitable for educational purposes, legacy system maintenance, and moderate-complexity embedded applications. While discontinued, this device remains valuable for existing designs requiring replacement components or engineers learning fundamental FPGA concepts.
With its combination of 256 logic cells, 3,000 usable gates, and robust 5V operation, the XC5202-6PC84C continues to serve applications where reprogrammability, reliability, and established design methodologies are priorities. For new projects, engineers should evaluate modern FPGA families offering enhanced performance, lower power consumption, and continued manufacturer support.
