PC33989DWR2 [MOTOROLA]
Network Interface,;
MOTOROLA 
ANALOG
PRODUCTS
MC33989
FACT SHEET
33989 SYSTEM BASIS CHIP (SBC) WITH HIGH-SPEED CAN
An SBC device is a monolithic IC combining many functions repeatedly found in
standard microcontroller based systems; e.g., protection, diagnostics, communica-
tion, and power.
APPLICATIONS
The 33989 is an SBC having a fully protected fixed 5.0 V low-drop regulator with
current limit, over-temperature pre-warning, and reset.
• Aircraft Systems
• Automotive Systems
• Robotic Systems
• Farm Equipment
An output drive with sense input is also provided to implement a second 5.0 V regu-
lator, using an external PNP transistor, that is external-resistor-ratio-adjustable to
meet peripheral needs.
TOR
• Industrial Actuator
Control
The 33989 has normal, standby, stop, and sleep modes, an internally switched high-
side power supply output with four wake-up inputs, programmable window watch-
dog, interrupt, reset, SPI input control, and a high-speed CAN transceiver compati-
ble with CAN 2.0 A and B protocols for module-to-module communication.
• Marine Applications
INREGULA
The combination is an economical solution for power management, high-speed
communication, and control in MCU-based systems.
POWRAGMENT
Simplified Application Diagram
V
PWR
33989
V
V
5.0 V
MCU
V2
DD1
S
GND
V
2CTRL
V2
HS1
RESET
INT
Local Module Supply
Wake-Up Inputs
CS
SCLK
MOSI
MISO
L0
L1
L2
L3
CS
SCLK
MOSI
MISO
SPI
WD
Safe Circuits
CANH
Twisted
Pair
Tx
Rx
CAN Bus
CANL
FEATURES
• Low-drop voltage regulator with current-limiting, over-temperature pre-warning,
and output monitoring with reset
• Adjustable external series pass PNP regulator
• Normal, standby, stop, and sleep modes with 60 to 130 µA sleep and stop mode
current (configuration dependent)
• High-speed 1.0 MB/s CAN interface compatible with CAN 2.0 A and B proto-
cols, with specific CAN pattern wake-up
• 150 mA switched V output for control of external circuitry
BAT
• Four external wake-up inputs, associated with VBAT
• V monitoring and failure detection
BAT
• 40 V transient survivability
• Software programmable watchdog window, interrupt, and reset
• Multiple wake-up modes: CAN, wake-up inputs, internal device timer, and CSB
(stop mode) via MCU
• Additional devices available for comparison in Analog Selector Guide SG1002/D
CUSTOMER BENEFITS
• Provides complete MCU power management solution with few components
• CAN and SPI interface
• Internal wake-up and watchdog function
• Motorola offers a complete line of compatible system basis chips with trans-
ceivers
• Simple system design with direct interfacing to a microprocessor
• Reduced PC board space resulting in enhanced application reliability
• Economical solution with an optimized performance/cost ratio
• Simplified MCU power supply design with internal safety features and output
voltage supervisory circuits
Performance
Typical Values
5.5 – 27 V
1.0 MB/s
Operating Voltage
Data Rate
Internal 5.0 V Reg
External 5.0 V Series Reg
Sleep & Stop Current
Operating Temp
200 mA
User Defined
60/120 µA
-40°C ≤ T ≤ 125°C
A
33989 Internal Block Diagram
V
2CTRL
Dual Voltage Regulator
V Voltage Monitor
V
V
S
S
2
V
Voltage Monitor
DD1
V
DD1
HS1 Control
Oscillator
INT
HS1
L0
Interrupt
Watchdog
Reset
WD
Programmable
Wake-Up Inputs
RESET
L1
Mode Control
L2
CS
L3
SCLK
MOSI
MISO
GND
SPI
Interface
Tx
V
S
1.0 MB/s
CAN
Transceiver
Rx
CAN H
CAN L
V
2
Shut
Status
Protection
Detect
Limiting
Down
Reporting
V1:
Under Voltage
Over Temperature
Over Current
•
•
•
•
•
•
•
•
•
Short Circuit
V2:
Under Voltage
•
•
•
•
HS1:
Over Temperature
Over Current
•
•
CAN Bus Failure:
H&L Over Current
H&L Over Temperature
Supply Line:
•
•
•
•
•
•
Under Voltage
Disconnect
•
•
•
•
Ordering
Ship
Motorola
Information Package
Method
Part Number
28 SOICW
Rail
T/R
**33989DW
**33989DWR2
Data Sheet Order Number
MC33989/D
Contact Sales for Evaluation Kit Availability
**Prefix Index:
PC = Eng Samples; XC = In Qual; MC = Production
QUESTIONS
• What voltage (5.0 V or 3.3 V) does your microcontroller need?
• What type of CAN (high/low speed) do you need?
• Do you need several power supplies?
• Do you need a fully protected low drop series pass regulator?
• How many wake-up inputs do you need?
• Do you need a watchdog with independent reset/interrupt capability?
• Are you looking for a complete, easy-to-design power supply solution for your
embedded system?
• Do you need an advanced microcontroller power supply with power sequencing
and supervisory functions?
How to reach us:
USA/EUROPE/Locations Not Listed: Motorola Literature Distribution;
P.O. Box 5405, Denver, Colorado 80217
1–303–675–2140 or 1–800–441–2447
JAPAN: Motorola Japan Ltd.; SPS, Technical Information Center,
3–20–1, Minami–Azabu. Minato–ku, Tokyo 106–8573 Japan
81–3–3440–3569
MOTOROLA and the Stylized M Logo are registered in the U.S. Patent & Trademark Office.
All other product or service names are the property of their respective owners.
© Motorola, Inc. 2002
ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Centre,
2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong
852–26668334
Technical Information Center: 1–800–521–6274
MC33989FS/D
Rev. 1
HOME PAGE: http://www.motorola.com/semiconductors
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