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NXP Semiconductors Electronic Components Datasheet

MC33989 Datasheet

System Basis Chip

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Freescale Semiconductor
Technical Data
System Basis Chip with
High Speed CAN Transceiver
Document Number: MC33989
Rev. 15.0, 6/2013
33989
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 1.0 Mbaud
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.
SYSTEM BASIS CHIP
WITH HIGH SPEED CAN
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 1.0 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
EG SUFFIX (PB-FREE)
98ASB42345B
28-PIN SOICW
ORDERING INFORMATION
Device
MC33989PEG/R2
Temperature
Range (TA)
-40 to 125 °C
Package
28 SOICW
33989
VPWR
5.0 V
VDD1
VSUP
V2
MCU
GND
RST
INT
V2CTRL
V2
HS1
Local Module Supply
CS CS
SCLK SPI SCLK
MOSI
MOSI
MISO
MISO
L0
L1
L2
Wake-Up Inputs
L3
WD Safe Circuits
TX CANH
RX CANL
Twisted
CAN Bus
Pair
Figure 1. MC33989 Simplified Application Diagram
*This document contains certain information on a product under development.
Freescale reserves the right to change or discontinue this product without notice.
© Freescale Semiconductor, Inc., 2007 - 2013. All rights reserved.


NXP Semiconductors Electronic Components Datasheet

MC33989 Datasheet

System Basis Chip

No Preview Available !

INTERNAL BLOCK DIAGRAM
VSUP
HS1
L0
L1
L2
L3
TX
RX
CAN H
CAN L
INTERNAL BLOCK DIAGRAM
VSUP Monitor Dual
Voltage Regulator
VDD1 Monitor
HS1 Control
Programmable
Wake-Up Inputs
Oscillator
Interrupt
Watchdog
Reset
Mode Control
High Speed
1.0 MB/s CAN
Physical
Interface
V2
SPI
Interface
V2CTRL
V2
VDD1
INT
WD
RST
CS
SCLK
MOSI
MISO
GND
Figure 2. 33989 Simplified Internal Block Diagram
33989
2
Analog Integrated Circuit Device Data
Freescale Semiconductor


Part Number MC33989
Description System Basis Chip
Maker NXP
PDF Download

MC33989 Datasheet PDF






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