| 1 |
1 |
1 |
1 |
TXD |
Transmit Data Input. TXD is a CMOS/TTL compatible input from a CAN controller with an internal pullup to VDD. |
| — |
— |
2 |
2 |
LPBK |
Loopback Mode. When connected to logic-high, the transmitter and receiver are placed in a high-impedance state. Internally, the TXD line drives directly to the RXD line for loopback that can be used for self-diagnostic of the transceiver without disturbing the bus. When loopback mode is not used, connect to GND or leave floating. |
| 2 |
2 |
3 |
3 |
GND |
Ground
|
| 3 |
3 |
4 |
4 |
VDD |
Supply Voltage. Bypass VDD to GND with a 0.1µF capacitor. |
| 4 |
4 |
5 |
5 |
RXD |
Receive Data Output. RXD is a CMOS/TTL compatible output from the physical bus lines CANH and CANL. |
| 5 |
5 |
6 |
6 |
FAULT |
Fault Detected Indication. Stays low when fault is not detected. Release to high if an overcurrent, overvoltage, or transmission failure is detected. |
| — |
— |
7 |
7 |
VL |
Logic Supply Input. VL is the logic supply voltage for the input/output between the CAN transceiver and controller. VL allows full compatibility from +1.62V to +5.5V logic on all digital lines. Bypass to GND with a 0.1µF capacitor. Connect VL to VDD for 5V logic compatibility. |
| 6 |
6 |
8 |
8 |
CANL |
CAN Bus Line Low
|
| 7 |
7 |
9 |
9 |
CANH |
CAN Bus Line High
|
| 8 |
— |
— |
10 |
S |
Silent Mode Input. Drive S low to enable TXD and to operate in normal mode. Drive S high to disable the transmitter. A 26.1kΩ external resistor can be used to connect the S pin to ground for slow slew mode. |
| — |
8 |
10 |
— |
STBY |
Standby Mode Input. A logic-high on STBY pin selects the standby mode. In standby mode, the transmitter is disabled, and the receiver is in low-power mode. A logic-low on STBY pin puts the transceiver in normal operating mode. A 26.1kΩ external resistor can be used to connect the STBY pin to ground for slow slew mode. |
