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MC33903: DescriptionSBC Gen2 with CAN High Speed and LIN Interface; File Size1MB，105 Pages; ManufacturerFREESCALE (NXP)

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SBC Gen2 with CAN High Speed and LIN Interface

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Freescale Semiconductor

Technical Data

Document Number: MC33903_4_5

Rev. 6.0, 4/2011

SBC Gen2 with CAN High Speed

and LIN Interface

The 33903/4/5 is the second generation family of the System Basis

Chip (SBC). It combines several features and enhances present

module designs. The device works as an advanced power

management unit for the MCU with additional integrated circuits such

as sensors, and 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 Modes. The SBC may

include zero, one or two LIN 2.1 interfaces with LIN output pin switches.

It includes up to four Wake-Up input pins that can also be configured as

output drivers for flexibility.

This device implements multiple Low Power (LP) Modes, with very

low-current consumption. In addition, the device is part of a family

concept where pin compatibility adds versatility to module design.

The 33903/4/5 also implements an innovative and advanced fail-safe

state machine and concept solution.

33903/

33903/4/5

SYSTEM BASIS CHIP

EK Suffix (Pb-Free)

98ASA10556D

32-PIN SOIC

EK Suffix (Pb-Free)

98ASA10506D

54-PIN SOIC

Features

• Voltage regulator for MCU, 5.0 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

• Extremely low quiescent current in (LP) 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 or 3.3 V SPI configurable regulator, for additional ICs,

with over-current detection and under-voltage protection

• MUX (except 33903) 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 (LP) Modes: CAN or LIN bus, I/O

transition, automatic timer, SPI message, and V

over-current

detection.

• ISO11898-5 high speed CAN interface compatibility for baud rates of

40 kb/s to 1.0 Mb/s

ORDERING INFORMATION

See

Table of Contents 2

Freescale Semiconductor, Inc. reserves the right to change the detail specifications,

as may be required, to permit improvements in the design of its products.

TABLE OF CONTENTS

Simplified Application Diagrams ................................................................................................................. 3

Device Variations ....................................................................................................................................... 6

Internal Block Diagrams ............................................................................................................................. 7

Pin Connections ....................................................................................................................................... 12

Electrical Characteristics .......................................................................................................................... 17

Maximum Ratings .................................................................................................................................. 17

Static Electrical Characteristics ............................................................................................................. 19

Dynamic Electrical Characteristics ........................................................................................................ 27

Timing Diagrams ................................................................................................................................... 30

Functional Description .............................................................................................................................. 34

Introduction ............................................................................................................................................ 34

Functional Pin Description ..................................................................................................................... 34

Functional Device Operation .................................................................................................................... 38

Mode and State Description .................................................................................................................. 38

LP Modes .............................................................................................................................................. 39

State Diagram ........................................................................................................................................ 40

Mode Change ........................................................................................................................................ 41

Watchdog Operation .............................................................................................................................. 41

Functional Block Operation Versus Mode ............................................................................................. 43

Illustration of Device Mode Transitions. ................................................................................................. 44

Cyclic Sense Operation During LP Modes ............................................................................................ 46

Behavior at Power Up and Power Down ............................................................................................... 48

Fail Safe Operation .................................................................................................................................. 50

CAN Interface ........................................................................................................................................ 54

CAN Interface Description ..................................................................................................................... 54

CAN Bus Fault Diagnostic ..................................................................................................................... 57

LIN Block .................................................................................................................................................. 60

LIN Interface Description ....................................................................................................................... 60

LIN Operational Modes .......................................................................................................................... 60

Serial Peripheral Interface ........................................................................................................................ 62

High Level Overview .............................................................................................................................. 62

Detail Operation ..................................................................................................................................... 63

Detail of Control Bits And Register Mapping ......................................................................................... 66

Flags and Device Status ........................................................................................................................ 83

Typical Applications ................................................................................................................................. 90

Packaging ................................................................................................................................................ 97

33903/4/5

Analog Integrated Circuit Device Data

Freescale Semiconductor

MC33903 Related Products

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Description	SBC Gen2 with CAN High Speed and LIN Interface	SBC Gen2 with CAN High Speed and LIN Interface	SBC Gen2 with CAN High Speed and LIN Interface	SBC Gen2 with CAN High Speed and LIN Interface	SBC Gen2 with CAN High Speed and LIN Interface	SBC Gen2 with CAN High Speed and LIN Interface	SBC Gen2 with CAN High Speed and LIN Interface	SBC Gen2 with CAN High Speed and LIN Interface

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