33989 Datasheet (Freescale Semiconductor)

33989, System Basis Chip

of each pin can be found in the Functional Pin Description section beginning on page 18.

Pin Number 1 2 3 Pin Name RX TX VDD1 Pin Function Output Input Power Output 4 5 6 *9 20 *23 10 11 RST INT GND V2 V2CTRL Output Output Ground Input Power Output 12 13 14 *17 22 23 24 25 26 27

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

33989 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: Track