When it comes to fast, deterministic, and low-power control logic, CPLDs (Complex Programmable Logic Devices) still play a critical role—especially in systems where startup time, cost, and I/O flexibility are essential. One popular and highly versatile option is the XC2C128-7VQG100C, part of the CoolRunner™-II family from Xilinx (now AMD).
This 128-macrocell CPLD offers a compact, high-reliability solution for glue logic, I/O expansion, boot sequencing, and state machine implementation, particularly in space-constrained and power-sensitive designs.
🔍 What is XC2C128-7VQG100C?
The XC2C128-7VQG100C is a CoolRunner-II CPLD designed for low-power, instant-on operation with up to 128 macrocells and 80 user I/Os, all in a VQFP-100 package. It uses a zero-static power architecture, enabling ultra-low power consumption during standby and efficient dynamic performance.
The device is optimized for cost-effective logic integration in a wide range of embedded applications and supports JTAG in-system programming (ISP) for easy prototyping and field updates.
📊 Technical Specifications of XC2C128-7VQG100C
| Parameter | Details |
|---|---|
| Manufacturer | Xilinx (AMD) |
| Part Number | XC2C128-7VQG100C |
| CPLD Family | CoolRunner™-II |
| Macrocells | 128 |
| Logic Blocks (Function Blocks) | 8 |
| User I/O Pins | Up to 80 |
| Operating Voltage | 1.8V core, 3.3V I/O (5V tolerant) |
| Speed Grade | -7 (7.5 ns pin-to-pin propagation delay) |
| Static Power Consumption | <100 μA (typical) |
| Package Type | VQFP-100 (Plastic Quad Flat Pack) |
| Temperature Range | 0°C to +85°C (Commercial Grade) |
| Configuration Type | Non-volatile (EEPROM-based flash memory) |
| In-System Programming | Yes, via IEEE 1149.1 JTAG |
| RoHS Compliance | Yes |
📄 View the full CoolRunner-II Data Sheet from AMD Xilinx.
✅ Key Features and Benefits
The XC2C128-7VQG100C provides advanced control logic functionality while maintaining power efficiency and design simplicity. Here are the core benefits:
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Instant-On Operation
– No configuration delay makes it ideal for boot sequencing and critical startup logic. -
Ultra-Low Static Power
– “Zero Power” architecture ensures minimal energy usage in standby mode. -
JTAG In-System Programming
– Fast, reliable programming and reconfiguration in-circuit. -
Wide I/O Compatibility
– Supports mixed-voltage signaling with 5V tolerance on inputs. -
Compact Package
– The 100-pin VQFP makes it easy to integrate into small PCBs. -
Reliable Non-Volatile Configuration
– EEPROM-based flash memory retains user logic through power cycles.
🧠 Common Applications of XC2C128-7VQG100C
The XC2C128-7VQG100C is a go-to device for designers looking for reliable and flexible control logic without the overhead of an FPGA. It’s commonly used in:
🏭 Industrial Automation
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Real-time machine control logic
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I/O management and signal multiplexing
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Fault detection and watchdog timers
🚗 Automotive Electronics
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Control logic for instrument clusters, infotainment systems, and power distribution units
📡 Telecommunications
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Protocol bridging and interface control logic
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System reset sequencing and clock management
🔌 Consumer Electronics and IoT
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Power-up sequencing for SoCs or processors
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Peripheral management for smart home and wearable devices
🖥️ Embedded Systems
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Bus decoding
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Address mapping
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Microcontroller I/O expansion
🔧 Design & Development Tools
The XC2C128-7VQG100C is fully supported by Xilinx ISE WebPACK, a free development suite for CPLD and FPGA design.
Features of ISE WebPACK:
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HDL design entry (VHDL/Verilog)
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Schematic-based design support
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Logic simulation and timing analysis
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JTAG programming tools
🔗 Source XC2C128-7VQG100C from DRex Electronics
At DRex Electronics, we specialize in high-quality sourcing of programmable logic devices, including the XC2C128-7VQG100C. Whether you’re prototyping, scaling, or maintaining a legacy product, we provide reliable global supply chain solutions.
Why Choose DRex?
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✅ ISO 9001 Certified sourcing partner
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✅ Real-time availability of CPLDs and FPGAs
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✅ Competitive pricing and fast worldwide delivery
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✅ Expert support for hard-to-find, EOL, and cross-reference parts
📩 Contact us to request a quote or check inventory.
🔁 Related Devices and Alternatives
Need more or fewer logic resources? Consider these alternatives:
| Part Number | Macrocells | Package | Notes |
|---|---|---|---|
| XC2C64A-7VQG44C | 64 | VQFP-44 | Lower capacity, smaller footprint |
| XC2C256-7TQG144C | 256 | TQFP-144 | Higher I/O and logic complexity |
| Intel 5M160ZM100C5N | 160 | EQFP-100 | MAX® V CPLD alternative from Intel |
Need help choosing the right part? Our team at DRex Electronics is ready to assist.
🧩 Summary
The XC2C128-7VQG100C is a compact, low-power CPLD offering the ideal combination of performance, flexibility, and non-volatility for embedded and control logic applications. Its instant-on behavior, in-system programmability, and small form factor make it a trusted choice for industrial, automotive, and consumer designs alike.
With continued demand for reliable CPLDs in modern electronics, the XC2C128-7VQG100C stands out as a solid, future-proof logic control solution.
