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MOTOROLA

Freescale Semiconductor, Inc.

Semiconductor Technical Data

Order this document by APD Marketing

Rev 5.6, 23th July 02

Product Preview

System Basis Chip Lite with Low

Speed Fault Tolerant CAN Interface

The MC33889 is a monolithic integrated circuit combining many functions

frequently used by automotive ECUs. It incorporates a low speed fault tolerant

CAN physical interface.

Main features:

鈥?Vdd1: 5V Low drop voltage regulator, current limitation, over temperature

detection, monitoring and reset function. Total current capability 200mA.

鈥?V2: Tracking function of Vdd1 regulator. Control circuitry for external bipolar

ballast transistor for high flexibility in choice of peripheral voltage and current

supply.

鈥?Four operational modes: normal, stand-by, stop and sleep modes.

鈥?Low stand-by current consumption in stop and sleep modes

鈥?Built in Low speed 125KBaud fault tolerant CAN physical interface,

compatible with Motorola MC33388.

鈥?External high voltage wake-up input, associated with HS1 Vbat switch

鈥?150mA output current capability for HS1 Vbat switch allowing drive of external

switches pull up resistors or relays

鈥?Vsup monitoring and failure detection

鈥?DC Operating voltage from 5 to 27V

鈥?40V maximum transient voltage

鈥?Programmable software time out and window watchdog

鈥?Separate outputs for Watchdog time out signal (WDOGB) and Reset (Reset).

鈥?Wake up capabilities: wake up input, programmable cyclic sense, forced

wake up, CAN interface, SPI (CSB pin) and stop mode over current.

鈥?Interface with MCU through 4 Mhz SPI.

鈥?SO28WB package with thermal enhanced lead frame.

PC33889

PASS3

System Basis

Chip Lite

SILICON MONOLITHIC

INTEGRATED CIRCUIT

Freescale Semiconductor, Inc...

DW SUFFIX

PLASTIC PACKAGE

CASE 751F

SO-28

PIN CONNECTIONS

Simplified Block Diagram

Q1

Vbat

V2CTRL

Vsup

V2

5V

Vsup monitor

CAN

supply

Dual Voltage Regulator

5V/200mA

Vdd1 Monitor

Mode control

HS1 control

Vdd1

5V/200mA

RX

TX

Vdd1

Reset

INTB

GND

GND

GND

GND

V2ctrl

Vsup

HS1

L0

L1

1

2

3

4

5

6

7

8

9

10

11

12

13

14

28

27

26

25

24

23

22

21

20

19

18

17

16

15

WDOGB

CSB

MOSI

MISO

SCLK

GND

GND

GND

GND

CANL

CANH

Rtl

Rth

V2

HS1

L0

L1

Oscillator

Programmable

wake-up input

Interrupt

Watchdog

Reset

INTB

WDOGB

Reset

MOSI

SCLK

MISO

CSB

V2

Txd

Rxd

Gnd

Device

SPI Interface

Vsup

Rrth

Rth

CAN H

CAN L

Rrtl

Rtl

Low Speed 125Kbit/s

Fault Tolerant CAN

Physical Interface

ORDERING INFORMATION

Operating

Temperature Range

Package

PC33889DW

This document contains information on a product under development. Motorola reserves the right

to change or discontinue this product without notice.

For More Information On

漏 Motorola, Inc., 2002. All rights reserved.

T

A

= -40 to 125擄C

SO-28

This Product,

Go to: www.freescale.com

next

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