The XC2C64A-7VQG100C is a high-performance Complex Programmable Logic Device (CPLD) from Xilinx’s renowned CoolRunner-II family. This ultra-low power programmable logic solution combines instant-on functionality with advanced features, making it ideal for battery-powered applications, portable devices, and power-sensitive embedded systems. As part of the Xilinx FPGA product line, this CPLD delivers exceptional performance while maintaining minimal power consumption.
Key Features and Specifications
Core Architecture Specifications
| Specification |
Details |
| Part Number |
XC2C64A-7VQG100C |
| Manufacturer |
Xilinx (now AMD) |
| Product Family |
CoolRunner-II CPLD |
| Logic Gates |
1,500 Gates (1.5K) |
| Macro Cells |
64 Macrocells |
| Operating Frequency |
159 MHz |
| Technology Node |
0.18μm CMOS |
| Supply Voltage |
1.8V |
Package and Physical Characteristics
| Parameter |
Specification |
| Package Type |
100-Pin VTQFP (Very Thin Quad Flat Pack) |
| Mounting Style |
Surface Mount Technology (SMT) |
| Number of I/O Pins |
64 User I/O |
| Operating Temperature |
-40°C to +85°C (Commercial Grade) |
| Package Height |
1.2mm |
| Lead-Free Status |
RoHS Compliant, Lead-Free |
Power Consumption and Performance
| Feature |
Value |
| Ultra-Low Standby Current |
16 μA |
| Dynamic Power Consumption |
28.8 μW (typical) |
| Propagation Delay |
6.7 ns |
| Voltage Range |
1.7V – 1.9V |
| Power Technology |
CoolCLOCK Technology |
Advanced Technical Features
DataGATE Technology for Power Optimization
The XC2C64A-7VQG100C incorporates Xilinx’s innovative DataGATE technology, which significantly reduces power consumption by gating unused product terms. This feature enables:
- Reduction in signal switching activity
- Lower overall system power consumption
- Extended battery life in portable applications
- Improved thermal performance
Function Block Architecture
The device consists of eight Function Blocks interconnected through an Advanced Interconnect Matrix (AIM) that delivers:
- 40 true and complement inputs to each Function Block
- 40 x 56 P-term Programmable Logic Array (PLA)
- 16 macrocells per Function Block with configurable combinational or registered modes
- Flexible signal routing capabilities
I/O Banking and Voltage Compatibility
Supported I/O Standards
The XC2C64A-7VQG100C provides multi-voltage I/O support with compatibility for:
- 3.3V LVTTL/LVCMOS
- 2.5V LVCMOS
- 1.8V LVCMOS
- 1.5V LVCMOS (with Schmitt-trigger inputs)
- Multiple JEDEC I/O standards
I/O Banking Configuration
| Feature |
Description |
| I/O Banks |
2 Independent Banks |
| Bank Voltage |
Independently programmable |
| Input Buffers |
Schmitt-trigger compatible |
| Output Drive |
Adjustable drive strength |
Programming and Configuration
In-System Programming Capabilities
The XC2C64A-7VQG100C features comprehensive In-System Programmability (ISP) through:
- IEEE 1149.1 JTAG boundary-scan support
- IEEE 1532 programming standard compliance
- Non-volatile Flash technology (instant-on capability)
- Field reprogrammability without external memory
- Direct FPGA configuration support
Development Tools and Software
| Tool Category |
Compatible Solutions |
| Design Software |
Xilinx ISE Design Suite, Vivado (legacy support) |
| Programming |
JTAG programmer, iMPACT software |
| Simulation |
ModelSim, ISim |
| Synthesis |
XST (Xilinx Synthesis Technology) |
Application Areas and Use Cases
Primary Applications
The XC2C64A-7VQG100C excels in various application domains:
Consumer Electronics
- Portable media players
- Digital cameras
- Gaming devices
- Smart home controllers
Industrial Control Systems
- Sensor interface controllers
- Motor control systems
- Factory automation
- Process control equipment
Wireless Technology and IoT
- Low-power wireless nodes
- IoT edge devices
- Sensor networks
- Battery-powered transmitters
Medical Equipment
- Portable diagnostic devices
- Patient monitoring systems
- Handheld medical instruments
- Low-power medical sensors
Telecommunications
- 5G infrastructure components
- Base station controllers
- Network interface cards
- Protocol converters
Design Considerations
Thermal Management
| Parameter |
Specification |
| Junction Temperature |
125°C maximum |
| Thermal Resistance (θJA) |
Varies by application and PCB design |
| Recommended Operating Range |
-40°C to +85°C |
Power Supply Design Guidelines
For optimal performance of the XC2C64A-7VQG100C:
- Core Voltage (VCCINT): 1.8V ±5%
- I/O Voltage (VCCIO): 1.5V to 3.3V (bank dependent)
- Decoupling Capacitors: 0.1μF ceramic at each power pin
- Power Sequencing: No specific requirements
- Bulk Capacitance: 10μF per device recommended
Technical Advantages
Why Choose XC2C64A-7VQG100C?
- Ultra-Low Power Consumption: Industry-leading 28.8μW standby power
- Instant-On Operation: No configuration delay upon power-up
- Non-Volatile Configuration: Built-in Flash eliminates external memory
- High Performance: 159 MHz system operation
- Flexible I/O: Multi-voltage support reduces component count
- Cost-Effective: Single-chip solution reduces BOM costs
- Reliable: CMOS Flash technology with high endurance
Comparison with Similar Devices
| Feature |
XC2C64A-7VQG100C |
XC2C128-7VQG100C |
M4-64/64-7VC |
| Macrocells |
64 |
128 |
64 |
| Gates |
1,500 |
3,000 |
1,500 |
| User I/O |
64 |
64 |
64 |
| Package |
100-VTQFP |
100-VTQFP |
100-TQFP |
| Speed Grade |
6.7ns |
6.7ns |
7.5ns |
| Supply Voltage |
1.8V |
1.8V |
3.3V |
Product Lifecycle and Availability
Important Notice: The XC2C64A-7VQG100C has been designated as obsolete by AMD/Xilinx and is no longer in active production. Designers should:
- Source remaining inventory from authorized distributors
- Consider pin-compatible alternatives from the CoolRunner-II family
- Evaluate migration paths to newer CPLD or FPGA solutions
- Contact AMD/Xilinx for recommended replacement parts
Alternative and Replacement Options
For new designs, consider these alternatives:
- XC2C64A-5VQG100C: Higher speed grade version
- XC2C128-7VQG100C: Increased logic capacity
- XC2C64A-7VQG44C: Smaller package option
- Modern FPGAs: Artix-7 or Spartan-7 series for advanced features
Quality and Compliance
Regulatory Compliance
| Standard |
Status |
| RoHS |
Compliant (EU 2011/65/EU, 2015/863) |
| REACH |
Compliant |
| ECCN |
EAR99 |
| HTSUSA |
8542390001 |
| Automotive Grade |
No (Commercial grade only) |
Procurement and Support
Authorized Distribution Channels
The XC2C64A-7VQG100C is available through:
- Electronic component distributors (limited stock)
- Authorized Xilinx/AMD partners
- Specialized FPGA and CPLD suppliers
- Independent brokers (verify authenticity)
Technical Support Resources
- Datasheet Downloads: Available from AMD/Xilinx archive
- Application Notes: Legacy CoolRunner-II documentation
- Reference Designs: Available through Xilinx solution centers
- Community Forums: Active FPGA/CPLD design communities
- FAE Support: Through authorized distributors
Frequently Asked Questions
Q: What is the difference between CPLD and FPGA?
A: CPLDs like the XC2C64A-7VQG100C use non-volatile Flash technology for instant-on operation and are ideal for smaller logic designs (64 macrocells). FPGAs use SRAM configuration, offer more logic capacity, but require external configuration memory.
Q: Can I use 5V logic with this device?
A: No, the XC2C64A-7VQG100C maximum I/O voltage is 3.3V. Use level shifters or voltage translators when interfacing with 5V systems.
Q: What development board is compatible?
A: The CoolRunner-II CPLD Starter Kit and various third-party evaluation boards support this device family. Check pin compatibility for specific boards.
Q: How do I program the XC2C64A-7VQG100C?
A: Use a JTAG programmer (Xilinx Platform Cable USB or compatible) with ISE Design Suite’s iMPACT software for device programming and configuration.
Q: What is the expected product lifetime?
A: While the device itself has high reliability, being obsolete means limited future availability. Plan for end-of-life considerations in new designs.
Conclusion
The XC2C64A-7VQG100C represents Xilinx’s commitment to ultra-low power programmable logic solutions. Despite its obsolete status, existing designs benefit from its exceptional power efficiency, instant-on capabilities, and robust performance. For engineers maintaining legacy systems or working with existing inventory, this CPLD continues to deliver reliable operation in power-sensitive applications.
For new projects requiring similar functionality, explore current AMD/Xilinx programmable logic offerings or contact authorized distributors for guidance on modern equivalents that maintain the power efficiency and feature set that made the CoolRunner-II family industry-leading.
