The NXP MC33903 is part of a second generation family of system basis chips, combining multiple features and enhanced module design. * The MC33903 works as an advanced power management unit for the MCU and additional integrated circuits such as sensors and CAN transceivers * 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.