Symbols · CAN

CAN bus transceiver

In plain English

What does CAN bus transceiver mean?

CAN (Controller Area Network) lets electronic devices exchange messages. A transceiver is the part that sends and receives the network's electrical signals.

A simple example

For example, a battery controller can report measurements to a system controller over a compatible CAN connection.

Controller logic signalsCAN transceiverCAN bus pair
Original functional explanation. Arrows show information or energy roles; two-headed arrows identify two-way interfaces. This is not a pinout, certified standards graphic or complete circuit.

What the drawings help you do

Put the CAN controller on the logic side and the CAN bus pair on the other side of the transceiver. The controller creates and interprets messages; the transceiver drives and receives their electrical signals. Show bus termination and reference connections from the selected network design.

Transceiver
A circuit that both transmits and receives electrical signals.
CAN controller
The function that handles the selected CAN messaging behaviour.

Before using this reference

  • Separate controller transmit/receive signals from bus conductors.
  • Reference the selected termination and cable arrangement.
  • Identify the transceiver supply and bus-reference connections.
Is the transceiver the CAN controller?

No. The controller handles protocol-related message functions, while the transceiver provides the electrical interface. Some devices combine roles, so use the selected product documentation to identify the actual boundaries.

Read the source: CAN interface functions

Schematic · CANCAN bus transceiver: original educational illustration
Original educational illustrationNot to scale · See source and graphic notes

A distinction that matters

The transceiver supplies a physical interface; it is not necessarily the CAN protocol controller.

Sources you can follow

These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.

CAN interface functions

CAN interface functions: public technical context for the named function. Product and compliance details remain with the publisher.

Texas Instruments · Public reference checked 27 October 2026 · Link only

About this graphic

This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.

SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.

Entry JSON · Entry Markdown · Last editorial update: 27 October 2026

Put the reference into a drawing workflow.

Elora Grid helps electrical teams work with drawings, specifications and equipment information. Explore the drafting workflow or join the early-access waitlist.

Explore drafting