CAN (Controller Area Network) chips are integrated circuits specialized in data communication, which are widely used in on-board network systems in the automotive field. The high reliability, stability and anti-interference capability of this chip makes it an indispensable key component in the automotive industry.

The CAN chip works by realizing various functions through internal circuits and logic gates. It first receives input signals from outside, such as commands from a computer or data from other sensors, and converts these signals into electrical signals that can be recognized by the chip‘s internal circuitry. Next, after logic operations, the chip performs calculations according to preset rules to realize complex functions. The results may need to be stored or transferred to other components, and the CAN chip‘s internal flip-flops are responsible for these tasks. Finally, the signals are processed by the output interface and converted into a signal form that can be accepted by external devices.

The CAN chip has a number of significant features and advantages. First, it supports high-speed data transmission, with a maximum transmission speed of up to 1 Mbps. second, it is capable of bi-directional communication between multiple nodes, allowing for the presence of multiple controllers in the network and a flexible topology. In addition, CAN bus is able to detect and correct erroneous data and monitor the bus status in real time, thus improving the reliability and safety of the system. Finally, when using CAN bus to transmit data, only two wires are needed on the bus to complete the communication, which takes up less resources compared to traditional IO, helping to reduce costs and save space.

CAN chips play an important role in the automotive industry, not only used in automotive electronic control unit (ECU), but also connected to sensors and actuators to achieve real-time monitoring and control of the body, engine and other systems. In addition, CAN chips are also widely used in industrial automation, ships, medical equipment and other fields.

1. Automotive electronic control unit (ECU): CAN chip, as the core component of ECU, is responsible for the data communication and control of the entire vehicle electronic system. By receiving, processing and transmitting data with the microprocessor in the ECU, the CAN chip ensures the smooth exchange of information between various systems of the vehicle and realizes the precise control of various functions of the vehicle.

2. Automotive sensors and actuators: CAN chip is connected with sensors and actuators in the car to realize real-time monitoring and control of various systems such as body, engine and airbag. Through the CAN bus, the sensors and actuators can transmit data to the central control unit in real time, enabling the vehicle to respond accurately to a variety of driving and operational needs.

3. Automotive entertainment and navigation systems: CAN chip integrates and forwards data from various systems within the vehicle to realize entertainment functions such as audio, video and navigation. It ensures information interaction between these systems, providing drivers with a richer and more convenient driving experience.

The application of CAN chip is not only limited to the above fields, its high-speed, reliable and anti-interference characteristics make it widely used in many other fields in the automotive industry. For example, in the engine control system, CAN bus is used to connect the engine control module, sensors and other equipment to realize the engine control, fuel injection, ignition control and other functions; in the braking system, CAN bus is used to realize the braking control, brake force distribution and other functions.

In addition, CAN chip also has the ability of multi-node communication, allowing multiple controllers to exist in the network, and can realize a variety of topologies, such as star connection, bus connection, tree connection. This flexibility allows the CAN chip to adapt to a variety of complex automotive network environments.

Overall, CAN chips play an indispensable role in the automotive industry, which ensures the flow of information and cooperative work between vehicle systems, and improves automotive performance, safety and driving experience.

 TI (Texas Instruments) CAN chips in stock:

SN65HVD232DR

SN65HVD231DR

SN65HVD230DR

ISO1050DUBR

 NXP(NXP) CAN chip stock:

TJA1051T/3/1J

TJA1042T/1J

TJA1050T/CM,118

TJA1051T/1J

TJA1040T/CM,118

TJA1042T/3/1J

PCA82C250T/YM,118

TJA1043T/1J

TJA1145T/FDJ

TJA1044GT/3Z

PCA82C251T/YM,118

TJA1055T/1J