What is CAN?

Tim Rohaly

CAN stands for Controller Area Network, which is a specification for a serial communications bus and protocol designed for highly-reliable distributed realtime control. CAN was originally developed in 1986 by Bosch for automotive applications, and has since seen wider use. CAN is currently an international standard, described by ISO 11898 (covers high speed applications up to 1 Mbit/s) and ISO 11519 (covers lower-speed applications, up to 125 kbit/s).