Overview of the XC3130A-4PC68C FPGA
The XC3130A-4PC68C is a versatile Field Programmable Gate Array (FPGA) from the renowned XC3000 series, designed for engineers and developers seeking reliable programmable logic solutions. This FPGA delivers exceptional performance with its 100 configurable logic blocks and 2000-gate equivalent capacity, making it ideal for complex digital circuit implementations across various industrial and commercial applications.
Technical Specifications and Features
Core FPGA Specifications
| Specification |
Details |
| Part Number |
XC3130A-4PC68C |
| Manufacturer |
Xilinx (Now AMD) |
| Series |
XC3000A Family |
| Package Type |
PC68C (Plastic Chip Carrier) |
| Pin Count |
68 Pins |
| Logic Blocks (CLBs) |
100 CLBs |
| Gate Count |
2,000 Gates |
| Speed Grade |
-4 (Commercial Grade) |
Performance Characteristics
| Parameter |
Value |
| Technology |
SRAM-based Configuration |
| Operating Temperature Range |
0°C to +70°C (Commercial) |
| Configuration Mode |
Multiple modes supported |
| Voltage Supply |
Standard 5V operation |
| Architecture Type |
Logic Cell Array (LCA) |
Key Features and Benefits
Flexible Configuration Architecture
The XC3130A-4PC68C utilizes advanced SRAM-based configuration technology, allowing user logic functions and interconnections to be programmed through data stored in internal static memory cells. This architecture provides several advantages:
- Rapid reconfiguration capability for iterative design optimization
- Multiple programming modes to accommodate diverse system requirements
- External storage options including EEPROM, EPROM, ROM, or disk-based solutions
- Automatic power-up loading through integrated on-chip initialization logic
Robust Design Platform
Engineers working with the XC3130A-4PC68C benefit from proven Xilinx FPGA technology that has powered countless successful projects worldwide. The device offers reliable performance for:
- Digital signal processing applications
- Control system implementations
- Custom interface development
- Prototyping and product development
- Educational and research projects
Applications and Use Cases
Industrial Control Systems
The XC3130A-4PC68C excels in industrial automation applications where programmable logic provides flexibility and scalability. Common implementations include:
- PLC interface circuits
- Motor control logic
- Sensor data acquisition systems
- Communication protocol converters
Digital Communications
This FPGA serves as an excellent platform for communication system development:
- Protocol converters and bridges
- Data encoding/decoding circuits
- Interface adaptors
- Signal conditioning and filtering
Embedded System Development
Development teams leverage the XC3130A-4PC68C for embedded applications requiring:
- Custom peripheral interfaces
- State machine implementations
- Glue logic replacement
- Bus interface controllers
Configuration and Programming
Supported Configuration Methods
The XC3130A-4PC68C supports multiple configuration approaches to fit various system architectures:
- Serial configuration using companion XC17XX Serial Configuration PROMs
- Parallel programming through standard microprocessor interfaces
- Master mode where the FPGA controls configuration
- Slave mode for system-controlled programming
Development Tools Compatibility
| Tool Category |
Support Details |
| Design Software |
Xilinx ISE, Vivado (with compatibility layer) |
| Simulation Tools |
ModelSim, Xilinx Simulator |
| Programming Hardware |
Standard JTAG programmers, Xilinx download cables |
| File Formats |
.BIT, .MCS configuration files |
Package and Physical Characteristics
PC68C Package Details
The PC68C (68-pin Plastic Chip Carrier) package offers several advantages:
- Compact footprint suitable for space-constrained designs
- Through-hole mounting for robust mechanical connections
- Cost-effective packaging for prototyping and production
- Standard pinout compatible with common development boards
Thermal and Mechanical Properties
| Property |
Specification |
| Package Material |
Ceramic-Plastic Composite |
| Lead Configuration |
J-lead or Gull-wing |
| Moisture Sensitivity Level |
MSL 3 (Standard) |
| Storage Temperature |
-55°C to +125°C |
Comparison with Alternative Devices
XC3000 Series Family Comparison
| Device |
CLBs |
Gate Count |
Speed Grade |
Applications |
| XC3130A-4PC68C |
100 |
2,000 |
-4 |
General purpose logic |
| XC3142A |
142 |
2,800 |
Various |
Higher density applications |
| XC3164A |
164 |
3,200 |
Various |
Complex designs |
| XC3195A |
195 |
3,900 |
Various |
Maximum capacity projects |
Design Considerations and Best Practices
Power Supply Requirements
Proper power supply design ensures reliable operation:
- Maintain stable 5V supply with minimal ripple
- Include decoupling capacitors near power pins
- Implement separate analog and digital ground planes where applicable
- Plan for inrush current during configuration
Signal Integrity Guidelines
To maximize performance of the XC3130A-4PC68C:
- Use proper termination for high-speed signals
- Minimize trace lengths for critical timing paths
- Implement ground planes for noise reduction
- Follow manufacturer layout guidelines for the PC68C package
Ordering Information and Availability
Part Number Breakdown
XC3130A-4PC68C designation explained:
- XC3130A: Device family and density
- -4: Commercial speed grade
- PC68C: Package type (68-pin Plastic Chip Carrier)
Sourcing and Distribution
The XC3130A-4PC68C is available through:
- Authorized electronic component distributors
- Rochester Electronics (current manufacturer)
- Specialized FPGA component suppliers
- Secondary market sources for legacy system support
Technical Support and Resources
Documentation Availability
Essential resources for working with the XC3130A-4PC68C:
- Complete datasheet with electrical specifications
- User guide for XC3000A family architecture
- Configuration specification documents
- Application notes for common implementations
Development Support
Design teams benefit from comprehensive support options:
- Technical forums and community resources
- Reference design examples
- Configuration file libraries
- Migration guides for system upgrades
Frequently Asked Questions
What makes the XC3130A-4PC68C suitable for new designs?
While the XC3130A-4PC68C is a mature product, it remains valuable for legacy system maintenance, educational projects, and cost-sensitive applications where proven technology and long-term availability are priorities.
Can the XC3130A-4PC68C be reprogrammed?
Yes, the SRAM-based configuration architecture allows unlimited reprogramming cycles, making it ideal for iterative development and field updates.
What are compatible configuration memory devices?
The XC17XX series Serial Configuration PROMs are designed specifically for XC3000 family devices, offering one-time programmable storage with simple serial interfaces.
How does speed grade affect performance?
The -4 speed grade represents commercial temperature range operation with moderate timing specifications, suitable for most general-purpose applications without extreme performance requirements.
Conclusion
The XC3130A-4PC68C Field Programmable Gate Array represents a proven solution for digital logic implementation across diverse applications. With its 100 configurable logic blocks, flexible configuration options, and robust PC68C package, this device continues to serve engineers requiring reliable programmable logic capabilities. Whether supporting legacy systems, educational initiatives, or specialized new designs, the XC3130A-4PC68C delivers dependable performance backed by extensive documentation and industry-standard development tools.
