Vehicle Networking Components
Compare CAN/LIN and automotive Ethernet by network role and wake behavior.
CAN, LIN and Automotive Ethernet
In-vehicle networks connect electronic control units through physical-layer transceivers, Ethernet PHYs, processors, and gateways. CAN and LIN commonly serve control domains and local nodes, while automotive Ethernet provides a higher-bandwidth link for vehicle data paths; the protocol and topology determine the required device roles.
Identify each network segment, data rate, node role, and gateway boundary before selecting an interface device. Check bus-fault protection, EMC, wake and standby modes, and compatibility with the controller or switch on the other side of the link.
Component Requirements
Typical functions, devices, and parameters in Vehicle Networking.
| System function | Typical devices | Key parameters | Browse |
|---|---|---|---|
| CAN and LIN Connects control modules and local body or powertrain nodes. | CAN FD and LIN transceivers, SBCs | Protocol, wake mode, fault handling | View category |
| Ethernet and gateway Moves higher-bandwidth data between vehicle domains. | Automotive Ethernet PHYs, switches, gateway processors | Link type, port topology, data rate | View category |
| Connector protection Protects exposed interface paths against electrical disturbances. | TVS devices, common-mode components | Clamp behavior, capacitance, EMC | View category |
Design & Selection Considerations
Protocol and topology
Map every segment to its bus type, node role, data path, and gateway interface before choosing transceivers or PHYs.
Wake and standby behavior
Check which network events wake the module and what remains powered during each vehicle sleep state.
Protection and EMC
Review the connector path, fault exposure, protection components, and layout conditions for the selected interface.
Frequently Asked Questions
No. They implement different physical layers and network interfaces. Select the transceiver or PHY for the bus defined by the system architecture, then verify the controller-side interface and required link behavior.
List the protocols and ports the gateway bridges, then check the processor or switch interfaces, each bus transceiver or Ethernet PHY, wake and power states, and protection on the external connections. A gateway replacement must match the data path as well as the board-level power and interface design.