System Basis Chip with Low Speed Fault Tolerant CAN

The 33389 is a monolithic integrated circuit combining many functions frequently used by automotive Engine Control Units (ECUs). It incorporates a low speed fault tolerant CAN transceiver.

Features
• Dual Low Drop Voltage Regulators, with Respectively 100 mA and 200 mA Current Capabilities, Current Limitation, and Over Temperature Detection with Pre-warning
• 5.0 V Output Voltage for V1 Regulator
• Three Operational Modes (Normal, Stand-by, and Sleep Modes) Separated from the CAN Interface Operating Modes
• Low Speed 125 kBaud Fault Tolerant CAN Interface, Compatible with 33388 Stand Alone Physical Interface
• V1 Regulator Monitoring and Reset Function
• Three External High Voltage Wake-Up Inputs, Associated with V3 VBAT Switch
• 100 mA Output Current Capability for V3 VBAT Switch Allowing Drive of External Switches or Relays
• Low Stand-by and Sleep Current Consumption
• VBAT Monitoring and VBAT Failure Detection Capabilities
• DC Operating Voltage up to 27 V
• 40 V Maximum Transient Voltage
• Programmable Software Window Watchdog and Reset
• Wake-Up Capabilities (CAN Interface, Local Programmable Cycle Wake
• INterface with the MCU through the SPI
• Pb-Free Packaging Designated by Suffix Codes VW and EG