The XC2C128-7VQ100C is a powerful Complex Programmable Logic Device (CPLD) from AMD Xilinx’s renowned CoolRunner-II family. This 128-macrocell CPLD delivers exceptional performance with ultra-low power consumption, making it the ideal choice for battery-powered applications, portable devices, and power-sensitive embedded systems.
Overview of XC2C128-7VQ100C CPLD
The XC2C128-7VQ100C combines advanced architectural features with industry-leading power efficiency. As part of the Xilinx FPGA and CPLD portfolio, this device offers designers a reliable, cost-effective solution for implementing complex digital logic functions. With its 100-pin VQ package and 7ns speed grade, this CPLD provides an optimal balance between performance, size, and power consumption.
Key Features and Specifications
Core Technical Specifications
| Specification |
Details |
| Part Number |
XC2C128-7VQ100C |
| Macrocells |
128 |
| Logic Gates |
3,000 equivalent gates |
| Speed Grade |
-7 (7ns tPD) |
| Package Type |
VQ100 (VQFP – Very Thin Quad Flat Pack) |
| Pin Count |
100 pins |
| Operating Voltage |
1.8V core, 1.8V-3.3V I/O |
| Temperature Range |
Commercial (0°C to +70°C) |
| Technology |
CoolRunner-II CPLD |
Advanced Performance Characteristics
| Performance Metric |
Value |
| Propagation Delay |
7ns maximum |
| System Frequency |
Up to 143 MHz |
| Standby Current |
As low as 28 µA |
| Dynamic Current |
0.14 mA/MHz typical |
| Total I/O Pins |
81 user I/O pins |
| Function Blocks |
8 |
| Macrocells per FB |
16 |
Why Choose XC2C128-7VQ100C?
Ultra-Low Power Consumption
The XC2C128-7VQ100C excels in power-critical applications. With standby current as low as 28 microamps, this CPLD is perfect for battery-operated devices. The advanced CoolRunner-II architecture ensures minimal power draw during both active operation and standby modes, significantly extending battery life in portable electronics.
Versatile I/O Capabilities
With 81 user-programmable I/O pins, the XC2C128-7VQ100C offers exceptional flexibility for interfacing with various components. Each I/O pin supports multiple voltage standards, including:
- LVTTL
- LVCMOS18, LVCMOS25, LVCMOS33
- SSTL2, SSTL3
- HSTL
High-Speed Performance
The 7ns speed grade ensures rapid signal processing and high-frequency operations. This makes the XC2C128-7VQ100C suitable for timing-critical applications where fast propagation delays are essential.
Technical Architecture Details
Function Block Organization
| Component |
Specification |
| Number of Function Blocks |
8 |
| Macrocells per Block |
16 |
| Product Terms per Macrocell |
Up to 40 |
| Global Clocks |
3 |
| ZIA (Zero-power Interconnect Array) |
Fully connected |
Memory and Configuration
The XC2C128-7VQ100C utilizes Flash-based configuration memory, ensuring:
- Non-volatile storage – Design retained after power-off
- In-System Programmability – Update designs without removing the device
- Unlimited reprogrammability – Modify your design as needed
- Fast configuration – Instant-on capability
Primary Applications
Industrial Control Systems
The XC2C128-7VQ100C is widely used in industrial automation, providing reliable logic control for:
- PLC interfaces
- Motor control systems
- Sensor data processing
- Industrial communication protocols
Consumer Electronics
Perfect for consumer devices requiring low power and compact size:
- Portable media players
- Digital cameras
- Smart home devices
- Wearable technology
Telecommunications Equipment
Ideal for telecom applications demanding high reliability:
- Network interface cards
- Protocol converters
- Signal routing
- Data multiplexing
Medical Devices
The low power consumption makes it suitable for:
- Portable diagnostic equipment
- Patient monitoring systems
- Medical sensor interfaces
- Battery-powered instruments
Package Information: VQ100
Physical Dimensions
| Parameter |
Specification |
| Package Type |
100-pin VQFP |
| Body Size |
14mm x 14mm |
| Height |
1.4mm maximum |
| Pitch |
0.5mm |
| Mounting |
Surface mount |
Benefits of VQ100 Package
The VQ100 package offers several advantages:
- Compact footprint – Saves valuable PCB space
- Easy assembly – Standard SMT manufacturing process
- Good thermal performance – Exposed pad for heat dissipation
- Cost-effective – Balance between I/O count and package cost
Development and Programming
ISE Design Suite Support
The XC2C128-7VQ100C is fully supported by Xilinx ISE Design Suite, offering:
- Schematic entry
- VHDL/Verilog HDL support
- ABEL-HDL compatibility
- Comprehensive simulation tools
- Timing analysis
Programming Options
| Method |
Interface |
| JTAG |
Standard IEEE 1149.1 boundary scan |
| In-System Programming |
Through dedicated JTAG pins |
| Gang Programming |
Multiple device programming |
Quality and Reliability Standards
The XC2C128-7VQ100C meets stringent quality standards:
- RoHS compliant – Lead-free, environmentally friendly
- Automotive-grade options available – Extended temperature ranges
- ESD protection – Built-in electrostatic discharge protection
- Latch-up immune – CMOS technology ensures robust operation
Design Considerations
Power Supply Requirements
Ensure proper power distribution:
- VCCIO: 1.8V to 3.3V (I/O banks)
- VCCINT: 1.8V (core logic)
- Decoupling: 0.1µF capacitors near each power pin
Thermal Management
While the XC2C128-7VQ100C operates with minimal heat generation, consider:
- Adequate PCB copper pour for ground planes
- Thermal vias under the package
- Ambient temperature in enclosures
Comparison with Similar Devices
XC2C128-7VQ100C vs Other Macrocell Counts
| Feature |
XC2C64 |
XC2C128 |
XC2C256 |
| Macrocells |
64 |
128 |
256 |
| I/O Pins (VQ100) |
81 |
81 |
N/A |
| Power (typical) |
Lower |
Medium |
Higher |
| Logic Capacity |
1,500 gates |
3,000 gates |
6,000 gates |
Ordering Information
Part Number Breakdown:
- XC2C128 – Device family and macrocell count
- -7 – Speed grade (7ns propagation delay)
- VQ – Package type (VQFP)
- 100 – Pin count
- C – Commercial temperature range
Frequently Asked Questions
What is the difference between CPLD and FPGA?
CPLDs like the XC2C128-7VQ100C offer instant-on capability, non-volatile configuration, and are ideal for simpler, faster logic functions. FPGAs provide higher density for complex designs but require external configuration memory.
Can I use the XC2C128-7VQ100C in automotive applications?
While the commercial-grade version operates from 0°C to 70°C, Xilinx offers automotive-grade variants with extended temperature ranges for automotive use.
What programming software is required?
The device is programmed using Xilinx ISE Design Suite or iMPACT programming tool, both available from AMD Xilinx.
Conclusion
The XC2C128-7VQ100C stands out as a versatile, power-efficient CPLD solution for modern electronic designs. Its combination of 128 macrocells, ultra-low power consumption, high-speed performance, and compact VQ100 package makes it an excellent choice for applications ranging from portable consumer electronics to industrial control systems.
Whether you’re designing battery-powered devices, implementing control logic, or creating interface circuits, the XC2C128-7VQ100C provides the reliability and performance you need. With full support from Xilinx development tools and a robust feature set, this CPLD enables engineers to bring their digital designs to life efficiently and cost-effectively.
Ready to start your design with the XC2C128-7VQ100C? This proven CPLD solution combines the best of low power, high performance, and flexible I/O capabilities in a compact package that fits seamlessly into your next project.
