System Basis Chip Gen2 with High Speed CAN

MC33904

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The NXP® MC33904 is a device in the second generation family of system basis chips, combining several features and enhanced module designs.

  • 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 and includes 2 or 3 wake-up input pins than can also be configured as output drivers for flexibility

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ブロック図

Freescale MC33904 Battery Management Block Diagram

NXP<sup>&#174;</sup> MC33904 Internal Block Diagram
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Features

Key Features

  • Voltage regulator for MCU, 5.0 V or 3.3 V, part number selectable, with possibility of usage external PNP to extend current capability and share power dissipation
  • Voltage, current and temperature protection
  • Very low quiescent current in low power modes
  • Fully-protected embedded 5.0 V regulator for the CAN driver
  • Multiple under-voltage detections to address various MCU specifications and system operation modes (i.e. cranking)
  • Auxiliary 5.0 V or 3.3 V SPI configurable regulator, for additional ICs, with over-current detection and under-voltage protection
  • MUX output pin for device internal analog signal monitoring and power supply monitoring
  • Advanced SPI, MCU, ECU power supply and critical pins diagnostics and monitoring.
  • Multiple wake-up sources in low-power modes: CAN bus, I/O transition, automatic timer, SPI message and VDD over-current detection.
  • ISO11898-5 high speed CAN interface compatibility for baud rates of 40 kb/s to 1.0 Mb/s

Product Longevity Program

  • This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The MC33904 is included in the 15-year program

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