www.DataSheet4U.com Freescale Semiconductor
Technical Data
Document Number: MC33989 Rev. 13.0, 3/2007
System Basis Ch...
www.DataSheet4U.com Freescale Semiconductor
Technical Data
Document Number: MC33989 Rev. 13.0, 3/2007
System Basis Chip with High-Speed CAN Transceiver
The 33989 is a monolithic integrated circuit combining many functions used by microcontrollers (MCU) found in automotive Engine Control Units (ECUs). The device incorporates functions such as: two voltage
regulators, four high voltage (wake up) inputs, a 1Mbaud capable CAN physical interface, an SPI interface to the MCU and VSUP monitoring and fault detection circuitry. The 33989 also provides reset control in conjunction with VSUP monitoring and the watchdog timer features. Also, an Interrupt can be generated, for the MCU, based on CAN bus activity as well as mode changes.
Features VDD1: Low Drop Voltage
Regulator, Current Limitation, Overtemperature Detection, Monitoring, and Reset Function VDD1: Total Current Capability 200 mA V2: Tracking Function of VDD1
Regulator. Control Circuitry for External Bipolar Ballast
Transistor for High Flexibility in Choice of Peripheral Voltage and Current Supply Low Stand-By Current Consumption in Stop and Sleep Modes High-Speed 1 MBaud CAN Physical Interface Four External High Voltage Wake-up Inputs Associated with HS1 VBAT Switch 150 mA Output Current Capability for HS1 VBAT Switch Allowing Drive of External Switches Pull-Up Resistors or Relays VSUP Failure Detection 40 V Maximum Transient Voltage Pb Free designated by suffix code EG
33989
SYSTEM BASIS CHIP WITH HI...