ST10F272M-4Q3 STMICROELECTRONICS [STMicroelectronics], ST10F272M-4Q3 Datasheet - Page 73

• Manufacturer Part Number: ST10F272M-4Q3
• Description: 16-bit MCU with 256 Kbyte Flash memory and 20 Kbyte RAM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST10F272M
17.2.1
Single CAN bus
The single CAN bus multiple interfaces configuration may be implemented using two CAN
transceivers as shown in
Figure 13. Connection to single CAN bus via separate CAN transceivers
The ST10F272M also supports single CAN bus multiple (dual) interfaces using the open
drain option of the CANx_TxD output as shown in
Connection, only one transceiver is required. In this case the design of the application must
take in account the wire length and the noise environment.
Figure 14. Connection to single CAN bus via common CAN transceivers
2.7kW
CAN_H
CAN_L
CAN_H
CAN_L
+5V
P4.5
P4.5
Transceiver
RX
Transceiver
RX
Figure
CAN1
CAN
CAN1
CAN
TX
TX
13.
P4.6
P4.6
OD
CAN bus
P4.4
P4.4
Transceiver
RX
RX
CAN2
CAN
CAN2
CAN bus
TX
TX
P4.7
Figure
P4.7
OD
14. Thanks to the OR-Wired
OD = Open Drain Output
XMISC.CANPAR = 0
XMISC.CANPAR = 0
CAN modules
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