The XC2C64A-7F33C is a high-performance Complex Programmable Logic Device (CPLD) from Xilinx’s acclaimed CoolRunner-II family. This 64-macrocell device combines exceptional low-power operation with high-speed performance, making it the ideal solution for battery-operated devices, portable electronics, and power-sensitive applications. Whether you’re designing for industrial automation, consumer electronics, or telecommunications equipment, the XC2C64A-7F33C delivers the perfect balance of functionality, power efficiency, and reliability.
What is the XC2C64A-7F33C CPLD?
The XC2C64A-7F33C represents Xilinx’s innovative approach to programmable logic solutions. As part of the Xilinx FPGA and CPLD portfolio, this device features 64 macrocells organized into 8 function blocks, all interconnected through an Advanced Interconnect Matrix (AIM). The device operates at 1.8V core voltage while supporting multiple I/O standards from 1.5V to 3.3V, ensuring compatibility with a wide range of modern electronic systems.
Quick Specifications Overview
| Specification |
Value |
| Part Number |
XC2C64A-7F33C |
| Manufacturer |
Xilinx Inc. |
| Product Family |
CoolRunner-II CPLD |
| Total Macrocells |
64 |
| Function Blocks |
8 |
| Package Type |
48-Pin QFN (Quad Flat No-Lead) |
| Operating Temperature |
-40°C to +85°C (Industrial) |
| Core Voltage |
1.8V |
| Maximum Frequency |
159 MHz |
| Technology |
0.18μm CMOS |
Key Features and Benefits of XC2C64A-7F33C
Ultra-Low Power Consumption
The XC2C64A-7F33C excels in power efficiency, making it perfect for battery-powered applications. The device features:
- Dynamic Power Reduction: Intelligent power management reduces consumption during active operation
- Standby Current: Extremely low standby current extends battery life in portable devices
- DataGATE Technology: Reduces signal switching to minimize power consumption
- DualEDGE Clocking: Achieves high performance with lower frequency clocking, reducing overall power draw
Advanced Architecture
| Architecture Component |
Description |
Benefit |
| Function Blocks |
8 blocks with 16 macrocells each |
Flexible logic implementation |
| PLA Structure |
40 x 56 product term array |
Complex combinational logic |
| Advanced Interconnect Matrix (AIM) |
Low-power routing |
Efficient signal distribution |
| Global Clocks |
3 global clock networks |
Simplified timing design |
| I/O Banking |
2 independent banks |
Multi-voltage interface support |
Flexible Macrocell Configuration
Each of the 64 macrocells in the XC2C64A-7F33C can be independently configured for:
- Combinational Logic: Pure logic implementation without registers
- Registered Operation: D flip-flop, T flip-flop, or D latch modes
- Direct Input Registers: Store signals directly from input pins
- Configurable Reset/Preset: Individual or global control
- Power-Up State: Programmable to logic 0 or logic 1
Technical Specifications and Performance
Electrical Characteristics
| Parameter |
Specification |
Notes |
| Supply Voltage (VCCINT) |
1.8V ±5% |
Core logic |
| I/O Voltage (VCCIO) |
1.5V to 3.3V |
Per bank configuration |
| Input Voltage Range |
-0.5V to VCCIO + 0.5V |
With proper clamping |
| Maximum Pin Current |
±24 mA |
Per I/O pin |
| Total Device Current |
240 mA |
All pins combined |
| Operating Temperature |
-40°C to +85°C |
Industrial grade |
| Storage Temperature |
-65°C to +150°C |
Non-operating |
Timing and Performance Specifications
| Timing Parameter |
Value |
Description |
| Maximum System Frequency |
159 MHz |
Internal logic operation |
| Pin-to-Pin Propagation Delay |
6.7 ns |
Typical combinational path |
| Clock-to-Output Delay |
4.5 ns |
Registered output |
| Setup Time |
2.0 ns |
Before clock edge |
| Hold Time |
0 ns |
After clock edge |
| Global Clock Distribution |
< 1 ns skew |
Between function blocks |
Package and Pinout Information
XC2C64A-7F33C Package Details
The XC2C64A-7F33C comes in a compact 48-pin QFN (Quad Flat No-Lead) package, designated as F33C in Xilinx’s nomenclature. This package offers:
- Small Footprint: 7mm x 7mm body size saves board space
- Exposed Pad: Enhanced thermal performance and electrical grounding
- RoHS Compliant: Meets environmental standards
- Lead-Free: Compatible with modern assembly processes
Pin Configuration Summary
| Pin Type |
Quantity |
Function |
| User I/O Pins |
33 |
Configurable input/output |
| Dedicated JTAG Pins |
4 |
Programming and boundary scan |
| Power Pins (VCCINT) |
4 |
Core power supply |
| Power Pins (VCCIO) |
4 |
I/O power supply |
| Ground Pins |
3 |
Ground connections |
| Exposed Pad |
1 |
Thermal and electrical ground |
Programming and Development
In-System Programming Capabilities
The XC2C64A-7F33C supports flexible programming options:
- JTAG Programming: IEEE 1149.1/1532 compliant boundary-scan interface
- In-System Programmability: Update configuration without device removal
- Program/Erase Cycles: Up to 20,000 cycles guaranteed
- Configuration Retention: 20+ years at room temperature
- Programming Time: Typically 1-2 seconds
Design Tools and Software Support
| Tool Category |
Supported Software |
Purpose |
| Design Entry |
Vivado Design Suite, ISE |
Schematic and HDL entry |
| HDL Languages |
VHDL, Verilog, SystemVerilog |
Logic description |
| Simulation |
ModelSim, ISim |
Functional verification |
| Synthesis |
XST, Vivado Synthesis |
Logic optimization |
| Timing Analysis |
Vivado Timing Analyzer |
Performance validation |
| Programming |
iMPACT, Vivado Hardware Manager |
Device configuration |
Application Areas and Use Cases
Industrial Applications
The XC2C64A-7F33C is widely deployed in industrial environments where reliability and power efficiency are critical:
- Motor Control Systems: Encoder interface and PWM generation
- Sensor Signal Processing: Data acquisition and filtering
- Industrial Networking: Protocol conversion and interfacing
- Process Control: State machine implementation and logic control
- Safety Systems: Redundant logic and failsafe mechanisms
Consumer Electronics
| Application |
XC2C64A-7F33C Role |
Benefits |
| Portable Media Players |
Power management, interface control |
Extended battery life |
| Smart Home Devices |
Logic control, sensor interface |
Low standby power |
| Wearable Technology |
Signal processing, data buffering |
Compact size, low power |
| Gaming Peripherals |
Input processing, LED control |
Fast response time |
| Battery Chargers |
Protection logic, state control |
Reliable operation |
Communications and Networking
The XC2C64A-7F33C provides essential glue logic in communication systems:
- Protocol Bridging: Interface between different communication standards
- Clock Generation: Precise timing for data transmission
- Signal Conditioning: Level shifting and impedance matching
- Data Buffering: FIFO implementation and flow control
- Address Decoding: Memory and peripheral selection
Medical Equipment
In medical device applications, the XC2C64A-7F33C offers:
- Patient Safety: Redundant logic for critical functions
- Low EMI: Reduced electromagnetic interference
- Battery Operation: Essential for portable diagnostic equipment
- Regulatory Compliance: Meets medical device standards
- Long-Term Reliability: Proven CPLD technology
Design Considerations and Best Practices
Power Supply Design
Proper power supply design is crucial for optimal XC2C64A-7F33C performance:
- Decoupling Capacitors: Place 0.1μF ceramic capacitors near each power pin
- Bulk Capacitors: Add 10μF tantalum capacitors for each voltage rail
- Power Plane Design: Use dedicated power and ground planes
- I/O Banking: Group I/Os by voltage level to optimize power distribution
- Supply Sequencing: VCCINT can power up before or simultaneously with VCCIO
Thermal Management Guidelines
| Condition |
Maximum Junction Temperature |
Recommended Action |
| Normal Operation |
< 85°C |
Standard PCB design adequate |
| High Utilization |
85-100°C |
Add thermal vias to ground plane |
| Continuous Maximum |
> 100°C |
Consider active cooling or heat sink |
PCB Layout Recommendations
- Trace Impedance: Match to 50Ω for high-speed signals
- Via Placement: Minimize vias in critical signal paths
- Ground Return: Provide continuous ground plane
- Signal Routing: Keep clock traces short and direct
- Exposed Pad Connection: Solder to ground plane with thermal vias
Comparison with Alternative Devices
XC2C64A Family Comparison
| Part Number |
Package |
Pins |
User I/O |
Speed Grade |
Temperature |
| XC2C64A-7F33C |
QFN |
48 |
33 |
-7 |
Commercial/Industrial |
| XC2C64A-7CPG56C |
CSBGA |
56 |
39 |
-7 |
Commercial |
| XC2C64A-7PC44C |
PLCC |
44 |
32 |
-7 |
Commercial |
| XC2C64A-7VQG44C |
VQFP |
44 |
32 |
-7 |
Commercial |
Competitive Positioning
The XC2C64A-7F33C stands out in the market due to:
- Power Efficiency: Industry-leading low power consumption
- Cost-Effectiveness: Competitive pricing for 64-macrocell density
- Proven Reliability: Extensive field deployment history
- Tool Support: Comprehensive design software ecosystem
- Availability: Multiple package options and suppliers
Ordering Information and Part Number Breakdown
Understanding the Part Number
XC2C64A-7F33C breaks down as follows:
- XC: Xilinx product prefix
- 2C: CoolRunner-II family designation
- 64: Number of macrocells (64)
- A: Silicon revision indicator
- -7: Speed grade (faster is better)
- F33: Package code (48-pin QFN, 7x7mm)
- C: Commercial temperature range (-40°C to +85°C)
Available Temperature Grades
| Grade Suffix |
Temperature Range |
Typical Application |
| C (Commercial) |
0°C to +85°C |
General electronics |
| I (Industrial) |
-40°C to +85°C |
Automotive, industrial |
Quality and Reliability
Manufacturing Standards
The XC2C64A-7F33C is manufactured to the highest quality standards:
- ISO 9001 Certified: Quality management system compliance
- JEDEC Standards: Meets industry-standard testing requirements
- RoHS Compliant: Lead-free and environmentally friendly
- Conflict-Free: Responsible mineral sourcing
- Automotive Grade Options: AEC-Q100 qualified versions available
Reliability Metrics
| Reliability Parameter |
Specification |
Test Method |
| MTBF |
> 1,000,000 hours |
MIL-HDBK-217F |
| ESD Protection |
2kV HBM, 200V CDM |
JESD22-A114, JESD22-C101 |
| Latch-Up Immunity |
> 200 mA |
JESD78 |
| Moisture Sensitivity |
Level 3 |
J-STD-020 |
| Data Retention |
20+ years |
JEDEC standards |
Support and Resources
Documentation Available
- Product Datasheet: Complete electrical and functional specifications
- User Guide: Detailed architecture and design information
- Application Notes: Design examples and best practices
- Development Board Guides: Reference designs and schematics
- Software Manuals: Tool usage and programming instructions
Technical Support Options
Designers working with the XC2C64A-7F33C can access:
- Online Forums: Community-driven support and discussions
- Knowledge Base: Searchable database of solutions
- Technical Articles: In-depth design tutorials
- Webinars: Live and recorded training sessions
- Direct Support: Email and phone assistance from Xilinx
Frequently Asked Questions
Q: What is the main difference between CPLD and FPGA?
CPLDs like the XC2C64A-7F33C offer non-volatile configuration, instant-on capability, and predictable timing. FPGAs provide higher gate counts but require external configuration memory. For designs under 10,000 gates with critical power requirements, CPLDs are often the better choice.
Q: Can the XC2C64A-7F33C interface with 5V logic?
While the device itself operates at 1.8V core and supports 1.5V-3.3V I/O, direct 5V interfacing requires external level translation circuitry to protect the I/O pins.
Q: How many logic gates does the XC2C64A-7F33C provide?
The device offers approximately 1,500 usable gates, though the actual capacity depends on the specific design implementation and optimization.
Q: What programming software is required?
The Xilinx ISE Design Suite or Vivado Design Suite is required for design entry, synthesis, and programming. Both tools are available as free downloads from Xilinx.
Q: Is the XC2C64A-7F33C suitable for automotive applications?
While the industrial temperature grade version can operate in automotive environments, specific automotive-qualified versions (AEC-Q100) should be selected for safety-critical automotive applications.
Conclusion
The XC2C64A-7F33C represents an excellent choice for designers requiring a compact, low-power CPLD solution with proven reliability. Its combination of 64 macrocells, ultra-low power consumption, and flexible I/O options makes it suitable for a wide range of applications from portable electronics to industrial control systems. With comprehensive development tool support and extensive documentation, the XC2C64A-7F33C enables rapid design cycles and reliable product deployment.
Whether you’re implementing glue logic, protocol conversion, or custom control functions, the XC2C64A-7F33C delivers the performance, power efficiency, and reliability your design demands. Its proven track record in thousands of deployed designs worldwide confirms its position as a leading solution in the CPLD market.
