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Single Wire CAN Transceiver Document Number: MC33897
Rev. 16.0, 6/2007
Freescale Semiconductor

Advance Information
* This document contains certain information on a new product.

Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2006. All rights reserved.
Single Wire CAN Transceiver
The 33897 Series provides a physical layer for digital
communications purposes using a Carrier Sense Multiple Access/
Collision Resolution (CSMA/CR) data link operating over a single
wire medium. This is more commonly referred to as Single Wire
Controller Area Network (CAN).
The 33897 Series operates directly from a vehicle's 12 V battery
system or a broad range of DC-power sources. It can operate at
either low or high (33.33 kbps or

83.33 kbps) data rates. A high-
voltage wake-up feature allows the device to control the regulator
used in support of the MCU and other logic. The device includes a
control terminal that can be used to put the module regulator into
Sleep mode. The presence of a defined wake-up voltage level on the
bus will reactivate the control line to turn the regulator and the system
back on.
The device complies with the GMW3089v2.4 General Motors
Corporation specification.
Features
Waveshaping for Low Electromagnetic Interference (EMI)
Detects and Automatically Handles Loss of Ground
Worst-Case Sleep Mode Current of Only 60
µ
A (75
µ
A on the 33897T)
Current Limit Prevents Damage Due to Bus Shorts
Built-In Thermal Shutdown on Bus Output
Protected Against Vehicular Electrical Transients
Undervoltage Lockout Prevents False Data with Low Battery
Pb-Free Packaging Designated by Suffix Code EF
SINGLE WIRE CAN
TRANSCEIVER
33897/A/B/C/D/T
D SUFFIX
EF (PB-FREE) SUFFIX
98ASB42565B
14-TERMINAL SOICN
EF (PB-FREE) SUFFIX
98ASB42564B
8-TERMINAL SOICN
ORDERING INFORMATION
Contains Lead
Pb-Free
RoHS
Temperature
Range (T
A
)
Package
MC33897D/R2
MC33897AD/R2
MC33897EF/R2
MC33897AEF/R2
MCZ33897EF/R2
MCZ33897TEF/R2
MCZ33897AEF/R2
*MCZ33897CEF/R2
- 40°C to 125°C
14 SOICN
MC33897BEF/R2
MCZ33897BEF/R2
*MCZ33897DEF/R2
8 SOICN
*Recommended device for all new designs
Analog Integrated Circuit Device Data

2
Freescale Semiconductor
33897/A/B/C/D/T
Figure 1. 33897/A/C Simplified Application Diagram
Figure 2. 33897B/D Simplified Application Diagram
MCU
33897/A/C/T
Power
Source
Battery
SWC BUS
TXD
BUS
MODE0
LOAD
MODE1
VBATT
RXD
CNTL
GND
VCC
EN
VCC
4
Voltage
Regulator
MCU
33897B/D
Battery
SWC BUS
TXD
BUS
MODE0
LOAD
MODE1
VBATT
RXD
GND
VCC
VCC Analog Integrated Circuit Device Data

Freescale Semiconductor
3
33897/A/B/C/D/T
DEVICE VARIATIONS
DEVICE VARIATIONS
*Recommended device for all new designs
Table 1. Device Variations
Part No.
Load Voltage Sleep
Mode
Other Significant Differences
See Page
33897
1.0 V Max
14-Pin Package
8
33897T
14-Pin Package
Quiescent Current in Sleep Mode, 5.0V

V
13V, Typical - 55
µ
A,
Max - 75
µ
A
ESD Voltage: Machine Model
±
100V
6
,
7, 8
33897A
0.1 V Max
14-Pin Package
Removes diode drop during Sleep Mode
May not detect Loss of Ground under certain module characteristics.
8
33897B
8-Pin Package
Removes diode drop during Sleep Mode
Does not include the CNTL terminal
May not detect Loss of Ground under certain module characteristics.
2, 4, 6,

7, 8

,13, 16
*33897C
14-Pin Package
Removes diode drop during Sleep Mode
Effectively detects Loss of Ground
ESD Voltage: Human Body Model
±
1500V, Machine Model
±
100V
8
*33897D
8-Pin Package
Removes diode drop during Sleep Mode
Effectively detects Loss of Ground
Does not include the CNTL terminal
ESD Voltage: Human Body Model
±
1500V, Machine Model
±
100V
2, 4, 6,

7, 8

,13, 16 Analog Integrated Circuit Device Data

4
Freescale Semiconductor
33897/A/B/C/D/T
INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
Figure 3. 33897/A/B/C/D/T Simplified Internal Block Diagram
Co ntrol
MODE0
MODE1
TX Bus DRVR
Bus RCVR
Load Switch
Wave Shaping E n
HV WU E n
TX Dat a
TXD
HV WU Det
RXD
RX Data
Timers
Timer
OSC
Undervoltage
Detect
LOAD
BAT
CNTL
GND
BUS
Disable
Disable
Mode
VBATT
TXD BUS DRVR
BUS RCVR
HVWU Enable
Waveshaping Enable
TXD Data
Disable
HVWU Detect
RXD Data
Mode
Control
CNTL*
*CNTL terminal is present on 33897/A/C/T only.
Disable Analog Integrated Circuit Device Data

Freescale Semiconductor
5
33897/A/B/C/D/T
PIN CONNECTIONS
PIN CONNECTIONS
Figure 4. 33897/A/B/C/D/T Pin Connections

Table 2. Pin Definitions
A functional description of each terminal can be found in the Functional Pin Description section, beginning on page
13
.
33897/A/C/T
Terminal
33897B/D
Terminal
Pin Name
Formal Name
Definition
1, 7, 8, 14
8
GND
Ground
Electrical Common Ground and Heat removal. A good thermal path
will also reduce the die temperature.
2
1
TXD
Transmit Data
Data input here will appear on the BUS terminal. A logic [0] will assert
the bus, a logic [1] will make the bus go to the recessive state.
3, 4
2, 3
MODE0,
MODE1
Mode Control
These Pins control Sleep Mode, Transmit Level, and Speed. They
have weak pulldowns.
5
4
RXD
Receive Data
Open drain output of the data on BUS. A recessive bus = a logic [1], a
dominant bus = logic [0]. An external pullup is required.
6, 13 NC
No Connect
No internal connection to these Pins. Pin 13 can be connected to GND
to allow the use of the 14-terminal or 8-terminal device.
(1)
9 CNTL
Control
Provides a battery-level logic signal.
10
5
VBATT
Battery
Power input. An external diode is needed for reverse battery
protection.
11
6
LOAD
Load
The external bus load resistor connects here to prevent bus pullup in
the event of loss of module ground.
12
7
BUS
Bus
This terminal connects to the bus through external components.
Notes
1.
Module boards can be planned for the 14-terminal package and still use the 8-terminal package.
GND
VBATT
CNTL
GND
NC
BUS
LOAD
GND
RXD
NC
GND
TXD
MODE0
MODE1
5
6
7
2
3
4
14
10
9
8
13
12
11
1
33897/A/C/T
2
3
4
8
7
6
5
1
1
2
4
3
8
7
5
6
GND
BUS
VBATT
TXD
MODE0
MODE1
RXD
LOAD
33897B/D Analog Integrated Circuit Device Data

6
Freescale Semiconductor
33897/A/B/C/D/T
ELECTRICAL CHARACTERISTICS
MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
MAXIMUM RATINGS
Table 3. Maximum Ratings
All voltages are with respect to ground unless otherwise noted.
Rating
Symbol
Value
Unit
Electrical Ratings
Supply Voltage
V
BATT
- 0.3 to 40
V
Input Logic Voltage
V
IN
- 0.3 to 7.0
V
RXD Pin Voltage
V
RXD
- 0.3 to 7.0
V
CNTL Pin Voltage (33897/A/C/T only)
V
CNTL
- 0.3 to 40
V
ESD Voltage
(2)
Human Body Model
All Pins Except BUS
33897/A/B/T
33897C/D
BUS Terminal (All Pkgs)
Machine Model
33897/A/B
33897C/D/T
V
ESD
± 2000
±1500
± 4000
± 200
± 100
V
Thermal Ratings
Ambient Operating Temperature
(3)
T
A
- 40 to 125
°
C
Junction Operating Temperature
T
J
- 40 to 150
°
C
Storage Temperature
T
STG
- 55 to 150
°C
Junction-to-Ambient Thermal Resistance
R JA
150
°C/W
Peak Package Reflow Temperature During Reflow
(4)
,
(5)
T
PPRT
Note 5.
°C
Notes
2.
ESD testing is performed in accordance with the Human Body Model (C
ZAP
= 100 pF, R
ZAP
= 1500 ),

Machine Model (C
ZAP
= 200 pF, R
ZAP
= 0 ).
3.
When using the 8-terminal device, consider the power dissipation at a high operating voltage and maximum network loading at ambient
temperatures exceeding 85°C.
4.
Pin soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits may
cause malfunction or permanent damage to the device.
5.
Freescales Package Reflow capability meets Pb-free requirements for JEDEC standard J-STD-020C. For Peak Package Reflow
Temperature and Moisture Sensitivity Levels (MSL),

Go to www.freescale.com, search by part number [e.g. remove prefixes/suffixes and enter the core ID to view all orderable parts. (i.e.
MC33xxxD enter 33xxx), and review parametrics. Analog Integrated Circuit Device Data

Freescale Semiconductor
7
33897/A/B/C/D/T
ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 4. Static Electrical Characteristics
Characteristics noted under conditions of -40
°
C T
A
125
°
C, unless otherwise stated. Voltages are relative to GND unless
otherwise noted. All positive currents are into the terminal. All negative currents are out of the terminal.
Characteristic
Symbol
Min
Typ
Max
Unit
GENERAL
Quiescent Current
Sleep
5.0 V

V
BATT 13 V
(6)
33897/A/B/C/D
33897T
Awake with Transmitter Disabled
5.0 V

V
BATT 26.5 V
Awake with Transmitter Enabled
5.0 V

V
BATT 26.5 V
I
QSLP
I
QATDIS
I
QATEN


45
55
60
75
4.0
9.0
µ
A
mA
mA
Undervoltage Shutdown
V
BATTUV
4.0 5.0
V
Undervoltage Hysteresis
V
UVHYS
0.1 0.5