The XC2C128-7VQG100I is a sophisticated Complex Programmable Logic Device (CPLD) from Xilinx’s renowned CoolRunner-II family, now manufactured by AMD. This industrial-grade programmable logic device combines exceptional performance with ultra-low power consumption, making it an ideal choice for embedded system designs, digital signal processing applications, and battery-powered electronic devices. The XC2C128 CPLD offers designers a reliable, flexible, and cost-effective solution for implementing custom digital logic circuits.
Technical Specifications and Key Features
Core Device Specifications
| Parameter |
Specification |
| Part Number |
XC2C128-7VQG100I |
| Manufacturer |
AMD (formerly Xilinx) |
| Product Family |
CoolRunner-II CPLD |
| Logic Capacity |
3,000 gates |
| Macrocells |
128 |
| Maximum Frequency |
152 MHz |
| Technology Node |
0.18μm CMOS |
| Package Type |
100-TQFP / VQFP100 |
| Lead Spacing |
0.5mm pitch |
| Package Dimensions |
20mm x 20mm |
Electrical and Operating Parameters
| Parameter |
Value |
| Supply Voltage |
1.7V to 1.9V (nominal 1.8V) |
| Operating Temperature |
-40°C to +85°C (Industrial) |
| Power Consumption |
Ultra-low power design |
| Number of I/O Pins |
80 user I/O pins |
| Total Pin Count |
100 pins |
| Lead-Free |
Yes (RoHS compliant) |
| Mounting Type |
Surface Mount (SMT) |
Advanced CPLD Features and Capabilities
In-System Programmability
The XC2C128-7VQG100I features robust in-system programming (ISP) capabilities, allowing engineers to configure and reconfigure the device without removal from the circuit board. This programmable logic device utilizes non-volatile configuration memory, ensuring that your design persists through power cycles without requiring external configuration storage.
Low Power Architecture
Built on Xilinx’s advanced CoolRunner-II architecture, this CPLD delivers industry-leading low power consumption. The device is optimized for:
- Battery-operated portable devices
- Power-sensitive industrial applications
- Always-on system monitoring functions
- Mobile and handheld electronics
High-Speed Performance
With a maximum operating frequency of 152 MHz, the XC2C128-7VQG100I provides sufficient speed for most digital logic applications while maintaining excellent signal integrity and timing predictability.
Package Information: 100-TQFP Configuration
Physical Package Characteristics
| Attribute |
Details |
| Package Style |
Thin Quad Flat Pack (TQFP) |
| Pin Configuration |
100 pins |
| Body Size |
20mm x 20mm |
| Pin Pitch |
0.5mm |
| Height |
Low profile design |
| Weight |
Lightweight for portable applications |
| Thermal Performance |
Excellent heat dissipation |
The compact 100-TQFP package offers an optimal balance between I/O density and PCB footprint, making it suitable for space-constrained embedded system designs.
Primary Applications and Use Cases
Industrial Control Systems
The XC2C128-7VQG100I excels in industrial automation applications where reliable performance across extended temperature ranges is critical. Common implementations include:
- Programmable Logic Controllers (PLCs)
- Motor control interfaces
- Sensor signal conditioning
- Industrial communication protocol converters
Consumer Electronics
This CPLD is widely deployed in consumer electronic products requiring custom logic functions:
- Digital camera processing
- Gaming peripherals
- Smart home devices
- Audio/video equipment interfaces
Automotive Applications
The industrial temperature rating (-40°C to +85°C) makes this device suitable for automotive electronics:
- Dashboard controller logic
- Infotainment system interfaces
- Vehicle sensor processing
- CAN bus controllers
Communications Equipment
The high-speed capabilities and flexible I/O configuration support various communication applications:
- Protocol converters
- Network interface cards
- Telecommunication equipment
- Data acquisition systems
Design Advantages: Why Choose XC2C128-7VQG100I
Flexibility and Customization
Unlike fixed-function ASICs, the XC2C128-7VQG100I provides complete design flexibility. Engineers can implement custom logic functions, modify designs in the field, and adapt to changing requirements without hardware changes.
Cost-Effective Solution
For low to medium volume production runs, CPLDs offer significant advantages over ASIC development:
- No NRE (Non-Recurring Engineering) costs
- Faster time-to-market
- Lower inventory risk
- Easy design iterations
Reliable Non-Volatile Configuration
The integrated non-volatile memory eliminates the need for external configuration devices, reducing:
- Bill of Materials (BOM) costs
- PCB real estate requirements
- System complexity
- Potential failure points
Industrial-Grade Reliability
The extended temperature range and robust design ensure reliable operation in harsh environments, making this CPLD suitable for mission-critical applications.
Integration with Xilinx Design Tools
Development Environment
The XC2C128-7VQG100I is fully supported by Xilinx’s comprehensive development tools. Designers can leverage industry-standard design flows using:
- ISE Design Suite
- Vivado Design Suite (for newer workflows)
- Third-party synthesis tools
For engineers working with Xilinx FPGA and CPLD solutions, the familiar Xilinx toolchain provides a seamless development experience with extensive simulation, synthesis, and implementation capabilities.
Programming and Configuration
Multiple programming options are available:
- JTAG boundary-scan programming
- In-system programming via standard connectors
- Production programming with automated equipment
Comparison: CPLD vs FPGA Technology
When to Choose CPLD (XC2C128-7VQG100I)
| CPLD Advantages |
Best For |
| Non-volatile configuration |
Systems requiring instant-on capability |
| Predictable timing |
Applications with strict timing requirements |
| Lower power standby |
Battery-powered devices |
| Simple design flow |
Smaller logic designs |
| Fixed architecture |
Control logic and glue logic |
CoolRunner-II Architecture Benefits
The CoolRunner-II family offers unique architectural features:
- Function Block architecture with 16 macrocells per block
- Flexible I/O standards support
- Advanced product terms for complex logic equations
- Programmable slew rate control
- Hot-socketing capability
Technical Documentation and Resources
Available Documentation
To successfully implement the XC2C128-7VQG100I in your design, consult these essential resources:
- Product Datasheet: Complete electrical and timing specifications
- User Guide: Detailed architecture and design guidelines
- Application Notes: Implementation examples and best practices
- PCB Layout Guidelines: Optimal board design recommendations
- Programming Specifications: Configuration and programming details
Ordering Information and Availability
Part Number Breakdown
XC2C128-7VQG100I decodes as:
- XC2C128: Device family and macrocell count
- 7: Speed grade (7 = 7.5ns)
- VQG100: Package type (Very Thin Quad Flat Pack, 100 pins)
- I: Temperature grade (Industrial: -40°C to +85°C)
Availability Status
Note: This product may have limited availability as newer CPLD and FPGA families have been introduced. Contact authorized distributors for current stock status and recommended alternatives.
Alternative and Compatible Devices
Direct Replacements
Consider these alternatives if the XC2C128-7VQG100I is unavailable:
| Part Number |
Difference |
| XC2C128-7VQ100C |
Commercial temperature range (0°C to 70°C) |
| XC2C128-6VQG100I |
Faster speed grade |
| XC2C128-7TQ144I |
Different package (144-pin TQFP) |
Family Alternatives
Other CoolRunner-II family members:
- XC2C64: 64 macrocells (smaller capacity)
- XC2C256: 256 macrocells (larger capacity)
- XC2C384: 384 macrocells (highest capacity)
Design Considerations and Best Practices
Power Supply Design
Ensure stable power delivery with these recommendations:
- Use dedicated power plane or wide traces
- Place decoupling capacitors close to power pins
- Implement proper ground plane strategy
- Monitor current requirements during all operating modes
Thermal Management
While the CoolRunner-II family is known for low power consumption, consider:
- Adequate PCB copper area for heat dissipation
- Proper airflow in enclosed systems
- Thermal relief on power and ground connections
- Junction temperature monitoring for high-utilization designs
Signal Integrity
Maintain signal integrity with proper PCB design:
- Controlled impedance for high-speed signals
- Minimize trace lengths for clock distribution
- Implement proper termination schemes
- Consider ground bounce and SSO effects
Quality and Reliability Standards
Manufacturing Quality
The XC2C128-7VQG100I is manufactured to the highest quality standards:
- ISO 9001 certified manufacturing
- Full traceability and lot tracking
- Comprehensive testing at multiple stages
- RoHS compliant (lead-free)
Reliability Testing
Devices undergo rigorous qualification:
- High-temperature operating life (HTOL) testing
- Temperature cycling stress tests
- Moisture sensitivity level (MSL) rating
- ESD protection testing
Conclusion: Why XC2C128-7VQG100I Remains Relevant
Despite the availability of newer programmable logic technologies, the XC2C128-7VQG100I continues to serve engineers who need:
- Proven reliability in industrial environments
- Instant-on capability without configuration delays
- Predictable timing for synchronous designs
- Low power consumption for portable applications
- Cost-effective solutions for moderate complexity designs
This CPLD represents an excellent balance of performance, power, and cost for a wide range of digital logic applications. Its industrial temperature rating, comprehensive I/O capabilities, and robust CoolRunner-II architecture make it a dependable choice for demanding embedded system designs.
Whether you’re developing industrial control systems, consumer electronics, automotive applications, or communication equipment, the XC2C128-7VQG100I provides the flexibility and reliability your project demands. Contact authorized distributors for pricing, availability, and technical support to ensure successful implementation in your next design.
