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The Electroboat CJMCU-2551 MCP2551 High-Speed CAN Protocol Controller Interface Module is a fault-tolerant, high-speed CAN transceiver that serves as the interface between a CAN protocol controller and the physical bus. Designed to meet the stringent requirements of the ISO-11898 standard, this module provides differential transmit and receive capabilities for microcontrollers operating in noisy electrical environments.

Whether you are building custom OBD-II automotive diagnostic scanners, linking multiple Arduino/ESP32 nodes across long distances, or designing industrial robotic control systems, the MCP2551 IC guarantees data integrity. It features advanced short-circuit protection, thermal shutdown, and protection against high-voltage transients on the CAN bus lines, making it incredibly resilient in real-world automotive and industrial conditions.

Key Features and Benefits

• High-Speed Communication: Supports reliable data transmission rates of up to 1 Mb/s for real-time control systems.

• ISO-11898 Compliant: Fully meets the physical layer requirements for 12V and 24V automotive systems.

• High Node Capacity: Allows up to 112 independent nodes to be connected on a single CAN network.

• Robust Fault Protection: Built-in protection against battery shorts, ground faults, and high-voltage electrical transients.

• Low RF Emission (EMI): Slope control on the output drivers reduces electromagnetic interference, ensuring clean signal integrity.

Technical Specifications

How to Use

1. Power the Module: Connect the VCC pin to a clean 5V DC supply and the GND pin to your microcontroller's ground.

2. Logic Connection: Connect the TXD and RXD pins to the corresponding Transmit and Receive pins of your CAN controller IC (e.g., MCP2515) or a microcontroller with a built-in CAN peripheral (like STM32 or ESP32).

3. Bus Connection: Wire the CANH and CANL pins to the high and low lines of your physical CAN network.

4. Termination Resistor: Ensure your CAN bus network is properly terminated with a 120-ohm resistor at both ends of the physical bus line to prevent signal reflection.

Applications

• Automotive OBD-II Diagnostics & ECU Communication

• Industrial Factory Automation & Sensor Networks

• Marine & Aerospace CAN Bus Systems

• Multi-Node Arduino, STM32, and Raspberry Pi Communication

• Advanced Robotics & Motor Driver Synchronization

Package Includes

• 1 x CJMCU-2551 MCP2551 CAN Protocol Controller High-speed Interface Module

• 1 x Straight Male Header Pin Strip

Shipping & Delivery

• Free shipping on orders above ₹999 across India.

• Dispatched within 1-3 business days.

• Expected delivery: 3-7 business days depending on location.

• Secure ESD and cushioned packaging to ensure safe transit of electronic components.