The 33903 is a second generation family of System Basis Chip, which combines several features and enhanced module designs. The device works as an advanced power management unit for the MCU and additional integrated circuits such as sensors, CAN transceivers. It has a built-in enhanced high speed CAN interface (ISO11898-2 and -5), with local and bus failure diagnostics, protection, and fail safe operation mode. The SBC may include zero, one or two LIN 2.1 interfaces with LIN output pin switches.
