CJMCU-2551 MCP2551 CAN Protocol Controller High-speed Interface Module

The CJMCU-2551 MCP2551 CAN Protocol Controller High-speed Interface Module is a high speed CAN, with fault-tolerant capabilities. It acts as an interfacing device between CAN protocol and the physical bus. The device, MCP2551 provides differential transmit and receive capabilities and is compliant with the ISO-11898, including the 24V requirements. Data transfer rate of up to 1Mb/s is achievable with this module.

The module also provides a buffer between the CAN controller and the high-voltage spikes that can be generated on the CAN bus by outside sources like EMI, ESD, electrical transients, etc.

Features:

• Supports 1 Mb/s operation
• Implements ISO-11898 standard physical layer requirements
• Suitable for 12V and 24V systems
• The externally-controlled slope for reduced RFI emissions
• Detection of ground fault (permanent Dominant) on TXD input
• Power-on Reset and voltage brown-out protection
• An unpowered node or brown-out event will not disturb the CAN bus
• Low current standby operation
• Protection against damage due to short-circuit conditions (positive or negative battery voltage)
• Protection against high-voltage transients
• Automatic thermal shutdown protection
• Up to 112 nodes can be connected
• High-noise immunity due to differential bus implementation
• Temperature ranges:
• – Industrial (I): -40°C to +85°C
• – Extended (E): -40°C to +125°C

Specifications:

• Model: MCP2551
• Input Voltage (V): 7
• Operating Temperature (°C): -40 to 125
• Storage condition (℃): -55 to 150

Pin Description:

Pin Number    Pin Name    Pin Function
1                      TXD             Transfer Data Input
2                      VSS             Ground
3                      VDD            Supply Voltage
4                      RXD            Receive Data Output
5                     VREF           Reference Output Voltage
6                     CANL           CAN Low-Level Voltage I/O
7                     CANH          CAN High-Level Voltage I/O
8                      RS               Slope-control Input

Package Includes:

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