MC33897_11 Datasheet, PDF (1/19 Pages) Freescale Semiconductor, Inc – Single Wire CAN Transceiver

Freescale Semiconductor
Technical Data
Document Number: MC33897
Rev. 17.0, 1/2011
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 pin
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 75 μA
• Current limit prevents damage due to bus shorts
• Built-in thermal shutdown on bus output
• Protected against vehicular electrical transients
• Under-voltage lockout prevents false data with low battery
• Pb-free packaging designated by suffix code EF
33897
SINGLE WIRE CAN
TRANSCEIVER
EF (PB-FREE) SUFFIX
98ASB42565B
14-PIN SOICN
ORDERING INFORMATION
Device
Temperature
Range (T_A)
Package
MCZ33897TEF/R2
*MC33897CTEF/R2
-40 to 125 °C
*Recommended device for all new designs
14 SOICN
V_CC
MCU
Power
source
Voltage
Regulator
EN
33897
CNTL ^VBATT
TXD
RXD
MODE 0
MODE 1
BUS
LOAD
Battery
SWC Bus
GND
4
Figure 1. 33897 Simplified Application Diagram
Freescale Semiconductor, Inc. reserves the right to change the detail specifications,
as may be required, to permit improvements in the design of its products.
© Freescale Semiconductor, Inc., 2006 - 2011. All rights reserved.