System Basis Chip, 2x 3.3 V/400mA LDOs, 3 wakeup, SOIC 32

The NXP MC33903 is part of a second generation family of

system basis chips, combining multiple features and enhanced module design.

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The MC33903 works as an advanced power management unit for the MCU and

additional integrated circuits such as sensors and CAN transceivers

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Built-in enhanced high-speed CAN interface (ISO11898-2 and -5), with local

and bus failure diagnostics, protection and fail-safe operation mode.

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The SBC may include zero, one or two LIN 2.1 interfaces with LIN output pin

switches.