ZHCSJK5C January 2018 – October 2020 TCAN4550-Q1
These pins are used for a crystal oscillator. The OSC1 pin can also be used as a single-ended clock input from the microprocessor or some other clock source. See Section 9.1 section for further information on the functions of these pins. It is recommended to provide a 40 MHz crystal or CLKIN to support CAN FD data rates.