The MC33389 is a monolithic integrated circuit combining many functions frequently used by automotive ECUs. It incorporates a low speed fault tolerant CAN transceiver.

• Dual Low Drop Voltage Regulators, with Respectively 100mA and 200mA Current Capabilities, Current Limitation and Over Temperature Detection with Prewarning

• 5V Output Voltage for V1 Regulator

• Three Operational Modes (Normal, Standby and Sleep Mode) Separated from the CAN Interface Operating Modes

• Low Speed 125kBaud Fault Tolerant CAN Interface, Compatible with MC33388 Standalone Physical Interface

• V1 Regulator Monitoring and Reset Function

• Three External High Voltage Wake-up Inputs, Associated with V3 Vbat Switch

• 100mA Output Current Capability for V3 Vbat Switch Allowing Drive of External Switches or Relays

• Low Standby and Sleep Current Consumption

• Vbat Monitoring and Vbat Failure Detection Capabilities

• DC Operating Voltage up to 27V

• 40V Maximum Transient Voltage

• Programmable Software Window Watchog and Reset

• Wake up Capabilities (CAN Interface, Local Programmable Cyclic Wake up)

• Interface with MCU through SPI

• Programmable Interupt Function