As a representative model of Xilinx's CoolRunner-II series, the XC2C256-7VQG100C has become an ideal choice for medium-scale logic designs, thanks to its 256 macrocells, 100-pin VQFP package, and 0.18μm CMOS process. Its core positioning is to balance high performance and low power consumption: it not only meets the energy-saving requirements of communication equipment but also provides battery-powered devices with high-speed processing capabilities of 152MHz. The typical quiescent current is as low as 13μA, and the dynamic power consumption is reduced by more than 50% compared with traditional CPLDs.
XC2C256-7VQG100C Features And Advantages
Core Features
High-Density Logic Resources and Flexible Architecture
256 macrocells are distributed across 16 function blocks, each containing a 40x56 product-term PLA and 16 macrocells, with a total of 6,000 logic gates, enabling complex digital logic designs.
8,192 bits of distributed RAM support configuration as registers or memory, meeting requirements for data buffering and timing control, such as frame synchronization buffering for real-time video streams.
80 user I/Os support multi-voltage standards (1.5V/1.8V/2.5V/3.3V) and are compatible with high-speed interfaces like SSTL and HSTL, allowing direct connection to sensors and processors with different voltage levels.
Low Power Consumption and High Efficiency Design
Operating voltage ranges from 1.7V to 1.9V (1.8V typical), with static power consumption as low as 13 μA. Dynamic power consumption is further optimized via DataGATE technology, which selectively disables inactive logic regions, making it suitable for battery-powered devices.
With a propagation delay (tpd) of 6.7 ns and a system clock of up to 256 MHz, it supports high-speed signal processing, such as nanosecond-level trigger signal generation in industrial automation.
CoolCLOCK technology enables high-speed synchronous operation at low clock frequencies through dual-edge triggering and even/odd frequency division, reducing overall power consumption.
Programming and Configuration Flexibility
Supports JTAG, SPI, and I2C interfaces, compatible with development tools like Xilinx ISE, enabling In-System Programming (ISP) and on-board debugging to simplify the design process.
Macrocells can be independently configured as D flip-flops, T flip-flops, or D latches, supporting asynchronous set/reset and power-up initial state settings to adapt to diverse logic requirements.
The global clock network supports frequency division, multiplication, and phase adjustment, catering to multi-clock domain designs—for example, synchronizing multi-sensor data in in-vehicle infotainment systems.
Reliability and Anti-Interference Design
Schmitt trigger inputs enhance signal integrity and reduce noise interference, making them suitable for sensor signal processing in industrial environments.
Global reset/set control lines ensure system stability, with electromagnetic interference (EMI) resistance further enhanced by ESD protection design.
Packaging and Compatibility
Features a 14x14 mm VQFP-100 package with a 0.5 mm pin pitch, suitable for high-density PCB layouts and compatible with surface-mount technology (SMT) standards.
Compatible with other models in the CoolRunner-II series, supporting design migration and expansion—for example, upgrading from XC2C128 to XC2C256 without re-routing.
Core Advantages
Perfect Balance of Low Power Consumption and High Performance
The combination of 13 μA static power consumption and 6.7 ns propagation delay makes it excellent for both portable devices (e.g., e-readers) and real-time control systems (e.g., industrial robotic arms).
DataGATE dynamic power management and CoolCLOCK technology significantly extend battery life while ensuring system response speed—for example, standby power consumption in smart sensor networks can be reduced to the μA level.
Multi-Voltage Compatibility Simplifies System Design
Support for 1.5V~3.3V I/Os allows direct connection to MCUs, sensors, and RF chips with different voltage levels, eliminating the need for additional level-shifting circuits. For instance, in smart speakers, it can simultaneously drive a 1.8V MCU and a 3.3V Bluetooth module.
Compatibility with SSTL/HSTL interfaces supports high-speed memory and processor connections, such as timing adaptation between PCIe and HDMI in in-vehicle infotainment systems.
Development Convenience and Ecosystem Support
The free ISE WebPACK toolchain provides end-to-end support from code writing to on-line debugging, lowering development barriers and making it suitable for educational and research applications.
Rich technical documentation (e.g., datasheet DS094 and application notes) covers pin definitions, timing diagrams, and typical circuit designs to accelerate project implementation.
High Reliability and Anti-Interference Capability
The industrial-grade temperature range (0°C~70°C) and anti-interference design ensure stable operation in complex environments (e.g., automotive electromagnetic interference), such as reliably processing ultrasonic sensor signals in reverse radar systems.
Global reset/set control lines and Schmitt trigger inputs enhance system stability, making it suitable for scenarios with high reliability requirements like medical devices.
Cost and Design Flexibility Advantages
A cost-effective choice for small to medium-scale logic designs, it is more affordable than FPGAs and requires no external configuration chips—for example, replacing discrete logic devices or simple FPGA applications.
Support for modular design allows phased development, such as using XC2C256 for rapid iteration during prototype verification and seamless migration to higher-density models during mass production.
XC2C256-7VQG100C Pinout Diagram
This diagram shows the XC2C256-7VQG100C in a VQ100 100-pin quad flat package (top view). Key pin categories:
- Power/Ground: VCC (core power, 1.8V) and VCCIO1 (I/O power, supports 1.8V/3.3V mixed supplies) provide dual-voltage compatibility. Multiple GND pins ensure stable grounding.
- User I/Os: Over 80 I/O pins (labeled IO) are grouped into banks, supporting LVCMOS/LVTTL standards. Some include features like Schmitt triggers or bus-hold for noise immunity.
- Global Controls: Pins (1) Global Output Enable, (2) Global Clock, (3) Global Set/Reset, and (4) Clock Divide Reset manage synchronous logic, critical for high-speed timing.
- JTAG Interface: TDI, TMS, TCK, and TRST pins enable in-system programming (ISP) and boundary-scan testing per IEEE 1149.1.
With dual VCCIO banks and flexible I/O configurations, this pinout suits mixed-voltage systems (e.g., industrial controllers, communication bridges), balancing low power and high-speed signal integrity.
XC2C256-7VQG100C CAD Model
XC2C256-7VQG100C Symbol
XC2C256-7VQG100C Footprint
XC2C256-7VQG100C 3D Model
XC2C256-7VQG100C Technical Specifications
| Product Attribute |
Attribute Value |
| Manufacturer |
AMD Xilinx |
| Voltage Supply - Internal |
1.7V ~ 1.9V |
| Supplier Device Package |
100-VQFP (14x14) |
| Series |
CoolRunner II |
| Programmable Type |
In System Programmable |
| Package / Case |
100-TQFP |
| Package |
Tray |
| Operating Temperature |
0°C ~ 70°C (TA) |
| Number of Macrocells |
256 |
| Number of Logic Elements/Blocks |
16 |
| Number of I/O |
80 |
| Number of Gates |
6000 |
| Mounting Type |
Surface Mount |
| Delay Time tpd(1) Max |
6.7 ns |
| Base Product Number |
XC2C256 |
| RoHS Status |
ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) |
3 (168 Hours) |
| REACH Status |
REACH Unaffected |
| ECCN |
EAR99 |
| HTSUS |
8542.39.0001 |
Switching Characteristics of XC2C256-7VQG100C
This graph illustrates the XC2C256-7VQG100C’s switching behavior, with the x-axis representing the number of switching outputs (1–16) and the y-axis showing the output transition delay (Tpp2 in ns).
Trend Analysis:
- 1–4 outputs switching: Delay remains stable at ≈4.0 ns, demonstrating timing consistency under low load, attributed to minimal internal routing contention and balanced power distribution.
- ≥8 outputs switching: Delay notably increases with output count (exceeding 5.0 ns at 16 outputs), reflecting timing degradation due to interconnect loading (e.g., row/column bus capacitance) and power supply noise from concurrent transitions, which stress the device’s internal resources.
Design Implications:
In timing-critical scenarios (e.g., high-speed interfaces, synchronous logic), this trend mandates:
- Output grouping: Segregating high-switching-rate signals to avoid simultaneous transitions on ≥8 pins.
- Load balancing: Distributing output loads across different I/O banks or using registered outputs to mitigate interconnect delays.
- Timing Margin Reservation: Allowing for worst-case delays (e.g., 5.0+ ns during full output switching) in synchronous designs to satisfy setup and hold requirements.
This behavior aligns with the device’s "low-power + high-performance" positioning, optimizing for applications like communication systems (multi-channel data processing) and industrial controls (parallel I/O expansion), where controlled output staging ensures both efficiency and reliability.
AC Test Circuit of XC2C256-7VQG100C
This circuit tests the AC characteristics of the XC2C256-7VQG100C. It consists of a resistive divider (R₁/R₂) and a load capacitor (Cₗ) to simulate real-world signal loads.
- Structure: The Device Under Test (DUT) connects to a test point via R₁ (pull-up), R₂ (pull-down), and Cₗ (35 pF, including test fixture/probe capacitance).
- Parameters: R₁/R₂ values vary by output standard (e.g., 275Ω/275Ω for LVCMOS33, 268Ω/235Ω for LVTTL33) to match voltage levels. All outputs use 35 pF Cₗ.
- Test Goals: Verifies timing (e.g., rise/fall times ≤1.5 ns), signal swing, and noise immunity under simulated loads. Ensures compatibility with mixed-voltage systems (e.g., 1.5V–3.3V I/Os) in industrial/communication applications.
This setup validates the XC2C256’s AC performance, critical for maintaining signal integrity in low-power, high-speed designs.
XC2C256-7VQG100C Applications
I. Industrial Automation and Control
Motor Drive and Motion Control
This CPLD can directly control the start/stop, speed, and direction of stepper motors or servo motors through PWM signal generation, encoder interface processing (such as AB phase counting), and fault detection logic. For example, in industrial robotic arms, it can realize multi-axis synchronous motion control and communicate with the main controller via the CAN bus. Its mixed I/O voltage support (1.5V/1.8V/2.5V/3.3V) is compatible with sensors and actuators of different level standards.
Industrial Networking and Protocol Conversion
It supports the hardware implementation of various industrial communication protocols (such as Modbus RTU, CANopen) and can serve as an edge node for protocol conversion. For instance, in intelligent manufacturing production lines, it can convert RS485 signals from field devices into Ethernet data, while ensuring data synchronization accuracy through a global clock network. Its 80 user I/Os can expand multiple communication interfaces to meet the parallel communication needs of multiple devices.
Machine Vision and Inspection Systems
In high-speed vision inspection equipment, the XC2C256-7VQG100C can process parallel image data from cameras (such as 8-bit RGB signals) in real-time, achieve frame synchronization through internal RAM caching, and trigger FPGAs or DSPs for in-depth analysis. For example, in semiconductor wafer inspection equipment, its 6.7ns propagation delay ensures the generation of nanosecond-level trigger signals.
II. Communication and Data Processing
Wireless Communication and Interface Expansion
It can implement baseband signal processing for wireless modules such as Zigbee and LoRa, including CRC verification, Time Division Multiple Access (TDMA) scheduling, and sleep-wake control. In intelligent sensor networks, for example, it acts as a node controller, communicates with radio frequency chips via the SPI interface, and uses DataGATE technology to turn off some logic during inactive periods, reducing standby power consumption to 21μA.
High-Speed Data Synchronization and Protocol Conversion
It supports timing adaptation for high-speed interfaces such as PCIe and USB 2.0. In in-vehicle infotainment systems, for example, it can convert MIPI CSI-2 signals from cameras to HDMI output, and achieve synchronization of different clock domains through a global clock divider (CoolCLOCK technology). Its 8192-bit distributed RAM can temporarily store video stream data, alleviating the bandwidth pressure on the main processor.
III. Automotive Electronics and Transportation
Body Electronics Control
It is used in door control modules (such as PWM signal generation for keyless entry systems), vehicle light management (timing control for dynamic flowing light effects), and automatic adjustment of windshield wipers (processing ADC data from rain sensors). Its Schmitt trigger inputs enhance anti-electromagnetic interference capability, ensuring stable operation in complex vehicle environments.
Advanced Driver Assistance Systems (ADAS)
In reverse radar systems, it captures echo signals from ultrasonic sensors, calculates obstacle distances, and drives buzzers to alarm. Its support for multiple clock domains (such as 3 global clocks) allows simultaneous processing of data from multiple sensors (such as radar and cameras) and real-time interaction with ECUs via the CAN bus.
IV. Consumer Electronics and IoT
Embedded System Logic Hub
In smart speakers, it can implement preprocessing of voice wake-up signals (such as noise filtering), LED light effect control (PWM dimming), and power management of Bluetooth/Wi-Fi modules. Its mixed I/O voltage characteristics allow direct connection of 1.8V MCUs and 3.3V radio frequency chips, simplifying circuit design.
Low-Power Control for Portable Devices
In e-book readers, it detects gravity sensor signals (I2C interface) to realize automatic screen rotation, and turns off unnecessary logic in sleep mode to reduce power consumption to the μA level. Its open-drain output function can directly drive the refresh control lines of e-paper displays.
V. Video Surveillance and Image Processing
Real-Time Video Transmission
In remote monitoring equipment, the XC2C256-7VQG100C acts as the main control chip, coordinating the A/D conversion of cameras, image caching (alternate storage in SRAM), and data flow of wireless transmission modules (such as GPRS). For example, patent cases show that it converts video data into RGB format through timing control, outputs it to displays via D/A chips, and communicates with monitoring terminals via the CAN bus.
Edge Computing and Intelligent Analysis
In smart security cameras, it can detect moving targets in real-time (based on differential algorithms) and collaborate with FPGAs through JTAG interfaces to complete AI inference tasks such as face recognition. Its 6000-gate logic resources can implement hardware acceleration for lightweight neural networks.
VI. Testing and Development Tools
Prototype Verification Platform
As the core logic device of development boards such as Digilent, it can quickly verify digital circuit designs (such as UART communication protocol stacks) and perform online debugging through tools like ISE. Its in-system programming (ISP) function allows engineers to update logic code without removing the chip, significantly shortening the development cycle.
Education and Scientific Research Applications
In university experimental courses, students can learn basic digital circuit knowledge such as state machine design and digital filter implementation through this CPLD. Its 100-pin VQFP package and user-friendly development documents (DS094) lower the threshold for teaching.
VII. Medical Devices and Instruments
Portable Medical Instruments
In blood glucose meters, it is responsible for ADC sampling control (such as 12-bit analog-to-digital conversion), key scanning, and LCD display driving. Its low static power consumption (21μA) can extend battery life, making it suitable for wearable devices. Mixed I/O voltage support (such as 1.5V MCUs and 3.3V sensors) simplifies multi-chip cascade design.
Medical Imaging Equipment
In portable B-ultrasound machines, it can implement timing control of probe arrays (such as multiplexing of transmit/receive signals) and preprocessing of image data (such as edge enhancement filtering). Its distributed architecture with 16 functional blocks can process multi-channel ultrasound signals in parallel, improving imaging speed.
XC2C256-7VQG100C Alternatives
| Part Number |
Manufacturer |
Key Features |
Use Case/Notes |
| XC2C256-7VQ100C |
AMD |
256 macrocells, 6000 gates, 16 logic blocks, and 80 I/Os. Operates from 1.7V to 1.9V and supports in-system programming. |
General-purpose programmable logic device for consumer or office environments (0°C to 70°C). |
| XC2C256-7VQG100I |
AMD |
Same features as XC2C256-7VQ100C but with an extended temperature range of -40°C to 85°C. |
Ideal for industrial and automotive use where higher temperature tolerance is needed. |
| XC2C256-7TQ144I |
AMD |
Offers 118 I/Os (more than others), same logic and gate capacity. Packaged in a 144-pin LQFP and supports wider temperature range. |
Suitable for high I/O count applications in industrial environments requiring robust performance. |
Device Part Marking of XC2C256-7VQG100C
The device part marking of XC2C256-7VQG100C follows Xilinx's standard for non-chip scale packages. “XC2C256” indicates it's a CoolRunner-II CPLD with 256 macrocells. “VQG100” defines the package type (100 - pin VQFP) and pin configuration. “7” represents the speed grade, denoting performance in terms of timing characteristics. This marking system helps identify key device attributes like type, package, speed at a glance, crucial for inventory, design, and procurement. It ensures engineers and technicians can quickly recognize the chip's specifications for proper integration in circuits.
XC2C256-7VQG100C Manufacturer
The XC2C256-7VQG100C is a product of Xilinx, a renowned company in the field of programmable logic solutions. Xilinx has long been a leader in providing advanced integrated circuit products, offering a wide range of high-performance and reliable solutions for various industries such as communications, industrial control, automotive electronics, and consumer electronics.
The XC2C256-7VQG100C belongs to Xilinx's CoolRunner-II series of CPLDs (Complex Programmable Logic Devices). This series is highly regarded for its exceptional balance between low power consumption and high performance, making it well-suited for applications with stringent power requirements and demanding timing constraints. Xilinx's commitment to innovation and quality ensures that devices like the XC2C256-7VQG100C deliver consistent and reliable performance in diverse electronic systems.
XC2C256-7VQG100C Category- CoolRunner-II CPLD Chip
The CoolRunner-II CPLD chip, developed by Xilinx, is a remarkable product in the field of programmable logic. It combines the low - power characteristics of the XPLA3 family and the high - speed, user - friendly features of the XC9500 series. Fabricated with a 0.18μm CMOS process, it offers macrocell densities ranging from 32 to 512, making it adaptable to various logic design scales.
Its architecture, featuring Function Blocks (FBs) and an Advanced Interconnect Matrix (AIM), enables efficient logic synthesis. It supports multi - voltage I/O operation from 1.5V to 3.3V, enhancing its compatibility. With core functions like in - system programming via the IEEE 1532 JTAG interface, dynamic reconfiguration, and power - saving DataGate technology, it stands out. Ideal for high - speed data communication, portable devices, and industrial control, it strikes a balance between performance and power consumption, becoming a popular choice for low - power logic integration tasks.
XC2C256-7VQG100C Datasheet.PDF
The value of the XC2C256-7VQG100C lies not only in its logic density of 256 macrocells but also in Xilinx's ultimate optimization of "energy efficiency ratio". Through RealDigital technology (pure CMOS product term generation replacing traditional Sense Amp), CoolCLOCK frequency division (even multiples from 2 to 16), and flexible power domain management, it has become a benchmark for "low power consumption and high performance" in scenarios such as industrial control, IoT terminals, and medical equipment. For design teams seeking a balance between stability and cost, this market-proven CPLD remains a reliable choice for mid-to-low-end logic integration.
WlS Electronic keeps a large stock of XC2C256-7VQG100C CoolRunner-II CPLD chips, high-performance and low-power solutions for reliable logic integration in various electronic systems. Sourced directly from leading manufacturers, all components are guaranteed genuine and brand-new, with strict quality assurance processes to ensure stable performance in industrial control, IoT terminals, medical devices, and other applications. For technical support, detailed datasheets and application notes (such as circuit designs for low-power embedded systems, industrial communication interface solutions) are available upon request.
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