The XC2C64A-7PCG44I is a high-performance Complex Programmable Logic Device (CPLD) from Xilinx’s renowned CoolRunner-II family. This 64-macrocell device delivers exceptional performance for both high-speed applications and low-power designs, making it an ideal choice for modern electronic systems. The XC2C64A-7PCG44I combines advanced CMOS technology with intelligent power management, offering engineers a reliable solution for various embedded system applications.
Manufactured using 0.18um technology, this Xilinx FPGA family component operates at 1.8V and features a compact 44-pin PLCC package, providing excellent performance-per-watt ratio for battery-operated and high-reliability systems.
Key Features and Benefits
Advanced Architecture
The XC2C64A-7PCG44I incorporates eight Function Blocks interconnected through a low-power Advanced Interconnect Matrix (AIM). This architecture enables efficient signal routing while minimizing power consumption. Each Function Block receives 40 true and complement inputs from the AIM, providing exceptional flexibility for complex logic implementations.
Power-Efficient Design
What sets the XC2C64A-7PCG44I apart is its ultra-low power consumption characteristics:
- Zero-power standby mode reduces energy consumption during idle states
- Dynamic power management optimizes power during active operation
- DualEDGE flip-flop technology enables high-performance synchronous operation with lower frequency clocking
- DataGATE function minimizes power consumption by reducing unnecessary signal switching
Comprehensive I/O Capabilities
The device offers versatile I/O configurations to meet diverse system requirements:
- Multiple voltage support: 3.3V, 2.5V, 1.8V, and 1.5V
- Two independent I/O banks for voltage translation
- Schmitt-trigger inputs available on per-pin basis
- Programmable slew rate limiting
- Bus hold, pull-up, and open drain configurations
Technical Specifications
Core Performance Parameters
| Specification |
Value |
| Part Number |
XC2C64A-7PCG44I |
| Manufacturer |
Xilinx |
| Product Family |
CoolRunner-II CPLD |
| Macrocells |
64 |
| Logic Gates |
1,500 (1.5K) |
| Maximum Frequency |
159 MHz |
| Supply Voltage |
1.8V |
| Technology Node |
0.18um |
| Package Type |
PLCC-44 (44-Pin PLCC) |
| Operating Temperature |
-40°C to +85°C (Industrial) |
| RoHS Compliant |
Yes |
Function Block Architecture
| Feature |
Specification |
| Function Blocks |
8 |
| PLA Configuration |
40 x 56 Product Terms |
| Macrocells per Block |
16 |
| AIM Inputs per Block |
40 (true and complement) |
| Global Clocks |
3 |
| I/O Banks |
2 |
Programming and Configuration
| Parameter |
Details |
| Programming Method |
In-System Programmable (ISP) |
| Program/Erase Cycles |
20,000 |
| Configuration Support |
IEEE 1149.1/1532 JTAG |
| Non-Volatile Storage |
Yes |
| Boundary-Scan |
JTAG compliant |
Application Areas
Industrial Control Systems
The XC2C64A-7PCG44I excels in industrial automation environments where reliability and power efficiency are crucial. Its wide operating temperature range (-40°C to +85°C) ensures stable operation in harsh industrial conditions.
Communication Equipment
With its 159MHz maximum frequency and low-power characteristics, the XC2C64A-7PCG44I is perfect for:
- Protocol converters
- Data acquisition systems
- Signal processing modules
- Interface bridging applications
Consumer Electronics
The device’s ultra-low power consumption makes it suitable for battery-powered consumer products:
- Portable medical devices
- Handheld instruments
- Wireless sensor nodes
- Smart home controllers
IoT and Edge Computing
The XC2C64A-7PCG44I provides ideal characteristics for IoT applications:
- Low power consumption extends battery life
- Small footprint fits compact designs
- Flexible I/O supports multiple communication protocols
- Non-volatile configuration ensures instant-on operation
Design Features and Capabilities
Flexible Register Configuration
The XC2C64A-7PCG44I macrocell registers offer extensive configuration options:
- D flip-flop or T flip-flop modes for different state machine implementations
- D latch configuration for transparent latch applications
- Direct input registers for storing signals from input pins
- Configurable power-up states (zero or one state)
- Global set/reset control for synchronized initialization
Advanced Clocking Options
Engineers benefit from multiple clocking schemes:
- Three global clocks available across all Function Blocks
- Product-term clocks for specialized timing requirements
- Per-macrocell clock selection for maximum flexibility
- DualEDGE capability doubles effective frequency while reducing power
Enhanced I/O Features
The XC2C64A-7PCG44I provides sophisticated I/O capabilities:
- Programmable slew rate controls signal edge speeds
- Bus hold circuits maintain signal states when drivers are tri-stated
- Pull-up resistors eliminate need for external components
- Open-drain outputs support wired-OR configurations
- Schmitt-trigger inputs improve noise immunity
Programming and Development Support
JTAG Programming Interface
The XC2C64A-7PCG44I supports industry-standard JTAG programming:
- IEEE 1149.1/1532 compliant boundary-scan
- In-system programming without device removal
- Direct configuration command initiation
- Comprehensive testing and prototyping support
Development Tools Compatibility
The device integrates seamlessly with Xilinx development tools:
- ISE Design Suite for legacy project support
- Vivado Design Suite for modern development workflows
- IMPACT for programming and debugging
- ChipScope for in-system analysis
Package Information and Pinout
PLCC-44 Package Details
The 44-pin PLCC (Plastic Leaded Chip Carrier) package offers:
- Compact footprint for space-constrained designs
- Socket compatibility for prototyping
- Reliable through-hole or surface mount options
- Industry-standard footprint
Pin Configuration
| Pin Category |
Count |
Description |
| User I/O Pins |
32 |
Configurable input/output pins |
| Dedicated Input |
2 |
Clock and control inputs |
| JTAG Pins |
4 |
Programming interface |
| Power Pins |
4 |
VCC and GND connections |
| Reserved |
2 |
Future use |
Competitive Advantages
Superior Power Efficiency
The XC2C64A-7PCG44I delivers industry-leading power efficiency through:
- Advanced CMOS NOR flash process
- Intelligent power-down modes
- Optimized signal routing architecture
- Low-power standby current
Enhanced Reliability
With 20,000 program/erase cycles and industrial temperature range operation, the XC2C64A-7PCG44I ensures long-term reliability in demanding applications.
Cost-Effective Solution
Despite being in obsolete lifecycle status, the XC2C64A-7PCG44I remains available through authorized distributors, offering:
- Factory excess stock availability
- Competitive pricing from multiple sources
- Price range: $1.04 – $1.21 per unit (volume dependent)
- Proven reliability for legacy system maintenance
Design Considerations
Power Supply Design
When implementing the XC2C64A-7PCG44I, consider:
- 1.8V core voltage requires precision voltage regulation
- Decoupling capacitors near power pins (0.1µF recommended)
- Separate I/O bank supplies for voltage translation
- Power sequencing not critical for single-supply operation
Signal Integrity
Optimize signal integrity by:
- Using controlled impedance traces for high-speed signals
- Implementing proper ground planes
- Minimizing stub lengths on critical paths
- Applying appropriate termination for long traces
Thermal Management
The XC2C64A-7PCG44I features low thermal dissipation:
- Typical power consumption: <100mW in active mode
- Minimal cooling requirements for most applications
- PLCC-44 package provides adequate thermal performance
- Consider airflow for high-temperature environments
Equivalent and Alternative Parts
CoolRunner-II Family Alternatives
| Part Number |
Macrocells |
Package |
Key Difference |
| XC2C64A-7PC44I |
64 |
PLCC-44 |
Standard temperature |
| XC2C64A-7PCG44C |
64 |
PLCC-44 |
Commercial grade |
| XC2C64A-7PG56I |
64 |
BGA-56 |
Ball grid array package |
| XC2C128 |
128 |
Various |
Higher density option |
Ordering Information and Availability
Part Number Breakdown
XC2C64A-7PCG44I decoding:
- XC2C = CoolRunner-II CPLD family
- 64A = 64 macrocells, enhanced version
- 7 = Speed grade (-7ns)
- PC = Plastic (P) PLCC (C) package
- G = Lead-free (RoHS compliant)
- 44 = 44 pins
- I = Industrial temperature range
Distributor Network
The XC2C64A-7PCG44I is available through:
- Authorized Xilinx distributors
- Franchised component suppliers
- Factory excess stock channels
- Electronic component brokers
Current availability shows over 3,300 units in stock from major distributors, with competitive volume pricing starting at $1.20 per unit for quantities above 279 pieces.
Quality and Compliance
Standards Compliance
The XC2C64A-7PCG44I meets rigorous industry standards:
- RoHS compliant lead-free construction
- JEDEC I/O standards compatibility
- IEEE 1149.1/1532 JTAG compliance
- Industrial temperature qualification
Reliability Testing
Xilinx subjects the XC2C64A-7PCG44I to comprehensive reliability testing:
- High-temperature operating life (HTOL)
- Temperature cycling stress tests
- Electrostatic discharge (ESD) protection verification
- Program/erase endurance validation
Frequently Asked Questions
Is the XC2C64A-7PCG44I still in production?
The device carries an “Obsolete” lifecycle status from Xilinx, but remains available through authorized distributors with factory excess stock and franchised inventory channels.
Can I replace XC2C64A-7PCG44I in existing designs?
Yes, several pin-compatible alternatives exist within the CoolRunner-II family. The XC2C64A-7PC44I and XC2C64A-7PCG44C offer drop-in compatibility for different temperature grades.
What development tools support this device?
The XC2C64A-7PCG44I is supported by Xilinx ISE Design Suite (versions 10.1 through 14.7) and IMPACT programming software. Vivado does not support CoolRunner-II devices.
What is the minimum order quantity?
Most distributors offer the XC2C64A-7PCG44I with MOQ of 1 piece, though volume discounts apply for orders above 279, 560, 1400, and 2800 pieces.
Conclusion
The XC2C64A-7PCG44I represents a proven solution for applications requiring reliable, low-power programmable logic. Despite its obsolete status, the device continues to serve critical roles in industrial control, communication systems, and consumer electronics. Its combination of 64 macrocells, 159MHz performance, and ultra-low power consumption in a compact PLCC-44 package makes it an excellent choice for both new designs with specific requirements and legacy system maintenance.
With comprehensive I/O flexibility, robust programming endurance, and availability through multiple distribution channels, the XC2C64A-7PCG44I delivers lasting value for engineers seeking dependable programmable logic solutions.
