ZHCSPU9 February 2024 TCAN1465-Q1 , TCAN1469-Q1
ADVANCE INFORMATION
Figure 9-7 shows the behavior of the INH pin during a brownout event. Brownout is when VSUP is ≤ UVSUP but > POR state. The RXD pin has an internal pull-up resister that is active during this event and will pull up the RXD pin output to the voltage level of VIO.
When the TCAN146x-Q1 has a UVSUP event, the CAN bus is biased to ground.