Document Number: MC33389
Rev. 5.0, 3/2007
Freescale Semiconductor
Advance Information
System Basis Chip with Low
Speed Fault Tolerant CAN
33389
The 33389 is a monolithic integrated circuit combining many
functions frequently used by automotive Engine Control Units (ECUs).
It incorporates a low speed fault tolerant CAN transceiver.
SYSTEM BASIS CHIP
Features
• Dual Low Drop Voltage Regulators, with Respectively 100 mA and
200 mA Current Capabilities, Current Limitation, and Over
Temperature Detection with Pre-warning
• 5.0 V Output Voltage for V1 Regulator
• Three Operational Modes (Normal, Stand-by, and Sleep Modes)
Separated from the CAN Interface Operating Modes
• Low Speed 125 kBaud Fault Tolerant CAN Interface, Compatible
with 33388 Stand Alone Physical Interface
• V1 Regulator Monitoring and Reset Function
• Three External High Voltage Wake-Up Inputs, Associated with V3
VBAT Switch
• 100 mA Output Current Capability for V3 VBAT Switch Allowing Drive
of External Switches or Relays
• Low Stand-by and Sleep Current Consumption
• VBAT Monitoring and VBAT Failure Detection Capabilities
• DC Operating Voltage up to 27 V
DH SUFFIX
DW SUFFIX
EG SUFFIX (PB-FREE)
PLASTIC PACKAGE
98ASB42345B
VW SUFFIX (PB-FREE)
PLASTIC PACKAGE
98ASH70273A
20-PIN HSOP
28-PIN SOICW
ORDERING INFORMATION
• 40 V Maximum Transient Voltage
Temperature
• Programmable Software Window Watchdog and Reset
• Wake-Up Capabilities (CAN Interface, Local Programmable
Cycle Wake
• INterface with the MCU through the SPI
• Pb-Free Packaging Designated by Suffix Codes VW and EG
Device
Package
Range (T )
A
MC33389CDH/R2
MC33389CVW/R2
MC33389CDW/R2
MC33389DDW/R2
HSOP-20
-40 to 125°C
SO-28
V
PWR
33389
5.0 V
V1
V2
VBAT
V3
L0
Switched V
BAT
5.0 V
MCU
L1
L2
GND
Wake-Up Inputs
CS
SCK
MOSI
MISO
CS
SCK
MOSI
MISO
INT
SPI
RTH
Twisted
Pair
CAN H
CAN L
CAN Bus
RST
TX
RX
RTL
Figure 1. 33389 Simplified Application Diagram
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2007. All rights reserved.
FREESCALE [ Freescale ]
