The XC2C256-6PQ208C is a high-performance Complex Programmable Logic Device (CPLD) from the AMD/Xilinx CoolRunner-II family. This advanced CPLD offers 256 macrocells with an ultra-fast 5.7ns propagation delay, making it ideal for industrial automation, telecommunications, and embedded control applications. Whether you’re designing prototypes or production-ready systems, the XC2C256-6PQ208C delivers exceptional reliability and low power consumption.
XC2C256-6PQ208C Key Features and Benefits
The CoolRunner-II XC2C256-6PQ208C stands out in the CPLD market for several important reasons. First, this device combines high-density logic integration with industry-leading power efficiency. Second, the in-system programmable architecture enables flexible design updates without hardware modifications. Third, the 208-PQFP package provides excellent signal integrity for high-speed applications.
High-Speed Performance Specifications
| Parameter |
Value |
| Propagation Delay (tpd) |
5.7 ns Maximum |
| Logic Blocks |
16 |
| Macrocells |
256 |
| Equivalent Gates |
6,000 |
| User I/O Pins |
173 |
Power Supply and Operating Conditions
| Specification |
Range |
| Core Voltage (VCC) |
1.7V ~ 1.9V |
| Operating Temperature |
0°C to +70°C (Commercial) |
| Package Type |
208-PQFP (28mm × 28mm) |
| Moisture Sensitivity Level |
MSL-3 |
XC2C256-6PQ208C Technical Architecture
CoolRunner-II CPLD Internal Structure
The XC2C256-6PQ208C utilizes the proven CoolRunner-II architecture, which delivers exceptional performance while maintaining ultra-low standby current. This CPLD features 16 function blocks, each containing 16 macrocells for a total of 256 programmable macrocells. Furthermore, the advanced interconnect matrix ensures predictable timing across all signal paths.
Programmable Logic Resources
| Resource |
Quantity |
Description |
| Function Blocks |
16 |
Independent logic units |
| Macrocells per Block |
16 |
Register/combinatorial cells |
| Total Macrocells |
256 |
Complete logic capacity |
| Product Terms |
56 per macrocell |
Logic equation inputs |
| Global Clocks |
3 |
Low-skew clock distribution |
| Global Set/Reset |
1 |
Synchronous initialization |
XC2C256-6PQ208C Package Information
208-PQFP Pin Configuration
The XC2C256-6PQ208C comes in a 208-pin Plastic Quad Flat Pack (PQFP) with a 28mm × 28mm body size. This surface-mount package offers excellent thermal performance and simplified PCB layout. Additionally, the 0.5mm pin pitch enables high-density board designs.
| Package Detail |
Specification |
| Package Style |
208-BFQFP |
| Body Size |
28mm × 28mm |
| Pin Pitch |
0.5mm |
| Lead Count |
208 |
| Mounting Type |
Surface Mount |
| Height |
3.4mm (typical) |
XC2C256-6PQ208C Applications
Industrial and Commercial Uses
The XC2C256-6PQ208C CPLD excels in various demanding applications. These include industrial control systems, communication infrastructure, automotive electronics, and consumer devices. Moreover, the device supports JTAG boundary scan testing for streamlined production testing.
Primary Application Areas
- Industrial automation and PLC interfaces
- Telecommunications equipment
- Networking and switching systems
- Motor control and drive systems
- Medical device electronics
- Aerospace and defense systems
- Consumer electronics interfaces
- Automotive infotainment systems
CoolRunner-II vs Competing CPLDs
Performance Comparison Table
| Feature |
XC2C256-6PQ208C |
Typical Competitor |
| Macrocells |
256 |
192-288 |
| Speed Grade |
5.7ns |
7.5-10ns |
| Standby Current |
16µA (typical) |
100µA+ |
| Core Voltage |
1.8V |
3.3V |
| In-System Programming |
Yes |
Limited |
| JTAG Support |
Full IEEE 1149.1 |
Basic |
Design Resources for XC2C256-6PQ208C
Development Tools and Software
Engineers working with the XC2C256-6PQ208C can access comprehensive design tools from AMD/Xilinx. The ISE Design Suite provides complete synthesis, implementation, and programming capabilities. Furthermore, detailed application notes and reference designs accelerate product development.
For additional Xilinx FPGA products and development resources, explore our comprehensive catalog of programmable logic devices.
Design Considerations
| Design Aspect |
Recommendation |
| Decoupling Capacitors |
100nF per VCC pin |
| JTAG Interface |
Standard 2×7 header |
| Clock Input |
Differential or single-ended |
| I/O Standards |
LVCMOS, LVTTL, SSTL |
| ESD Protection |
Built-in per I/O |
XC2C256-6PQ208C Ordering Information
Part Number Breakdown
| Segment |
Meaning |
| XC2C |
CoolRunner-II Family |
| 256 |
256 Macrocells |
| -6 |
Speed Grade (5.7ns) |
| PQ |
PQFP Package |
| 208 |
208 Pins |
| C |
Commercial Temperature (0°C to +70°C) |
Available Variants
| Part Number |
Temperature Range |
Speed Grade |
| XC2C256-6PQ208C |
0°C to +70°C |
-6 (5.7ns) |
| XC2C256-6PQ208I |
-40°C to +100°C |
-6 (5.7ns) |
| XC2C256-7PQ208C |
0°C to +70°C |
-7 (6.7ns) |
| XC2C256-7PQ208I |
-40°C to +100°C |
-7 (6.7ns) |
Frequently Asked Questions About XC2C256-6PQ208C
What is the XC2C256-6PQ208C?
The XC2C256-6PQ208C is a Complex Programmable Logic Device (CPLD) manufactured by AMD/Xilinx as part of the CoolRunner-II product family. It provides 256 macrocells in a 208-PQFP package with 5.7ns maximum propagation delay.
What programming tools are required?
The XC2C256-6PQ208C supports in-system programming via JTAG. You can use the Xilinx Platform Cable USB or compatible programmers with ISE Design Suite software.
What are the power consumption specifications?
The XC2C256-6PQ208C features industry-leading low power consumption with typical standby current of just 16µA. Dynamic power consumption varies based on operating frequency and logic utilization.
Is the XC2C256-6PQ208C still in production?
The XC2C256-6PQ208C has reached end-of-life status. However, compatible inventory and alternative solutions remain available through authorized distributors.
Conclusion
The XC2C256-6PQ208C CoolRunner-II CPLD delivers an excellent combination of high-speed performance, low power consumption, and design flexibility. With 256 macrocells, 5.7ns timing, and 173 user I/O pins, this device supports a wide range of applications from industrial control to telecommunications. While this specific part number has reached end-of-life, engineers can find compatible alternatives and cross-references through AMD/Xilinx resources.
