AMIS-42671_13 Datasheet, PDF (1/13 Pages) ON Semiconductor – High Speed Autobaud CAN Transceiver

AMIS-42671
High Speed Autobaud CAN
Transceiver
General Description
The AMIS−42671 CAN transceiver with autobaud is the interface
between a controller area network (CAN) protocol controller and the
physical bus. It may be used in both 12 V and 24 V systems. The
transceiver provides differential transmit capability to the bus and
differential receive capability to the CAN controller. Due to the wide
common−mode voltage range of the receiver inputs, the AMIS−42671
is able to reach outstanding levels of electromagnetic susceptibility
(EMS). Similarly, extremely low electromagnetic emission (EME) is
achieved by the excellent matching of the output signals.
The AMIS−42671 is primarily intended for industrial network
applications where long network lengths are mandatory. Examples are
elevators, in−building networks, process control and trains. To cope
with the long bus delay the communication speed needs to be low.
AMIS−42671 allows low transmit data rates down 10 kbit/s or lower.
The autobaud function allows the CAN controller to determine the
incoming baud rate without influencing the CAN communication on
the bus.
Features
• Fully compatible with the ISO 11898−2 standard
• Autobaud function
• Wide range of bus communication speed (0 up to 1 Mbit/s)
• Allows low transmit data rate in networks exceeding 1 km
• Ideally suited for 12 V and 24 V industrial and automotive
applications
• Low electromagnetic emission (EME), common−mode choke is no
longer required
• Differential receiver with wide common−mode range ($35 V) for
high EMS
• No disturbance of the bus lines with an un−powered node
• Thermal protection
• Bus pins protected against transients
• Silent mode in which the transmitter is disabled
• Short circuit proof to supply voltage and ground
• Logic level inputs compatible with 3.3 V devices
• ESD protection for CAN bus at $8 kV
• These are Pb−Free Devices*
http://onsemi.com
PIN ASSIGNMENT
TxD 1
GND 2
V_CC 3
RxD ₄
8 AUTB
7 ^CANH
6 _CANL
5 V_REF
PC20070929.1
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2009
1
January, 2009 − Rev. 3
Publication Order Number:
AMIS−42671/D