CAN bus can realize high reliability serial communication with its high communication rate and good anti-electromagnetic interference ability. Therefore, it has high application value in practical applications. However, with the continuous development of integrated technology, in order to save power consumption and reduce the circuit size, the Logical Electrical Level of some new CAN bus controllers adopts LVTTL, which requires a bus transceiver suitable for it. And the SN65HVD230 type circuit produced by TI solves this problem very well.
SN65HVD230 is a 3.3CAN bus transceiver produced by Texas Instruments. The device is suitable for serial communication of CAN bus with high communication rate, good anti-interference ability and high reliability. The transceiver has differential transceiver capability, and the maximum rate can reach 1Mb/s. It is widely used in automotive, industrial automation, UPS control and other fields.
Product Details
Chip Features:
- Fully compatible with the ISO11898 standard;
- High input impedance, allowing 120 nodes;
- Low current standby mode, typical current is 370μA;
- Signal transmission rate up to 1Mb/s;
- With thermal protection, open circuit failure protection function;
- With the anti-instantaneous interference and protecting the bus function;
- Slope control, and reduce radio frequency interference (RFI);
- Differential receiver with anti - wide range of common - mode interference and electromagnetic interference ( EMI ) capacity.
Application Scenarios：
- Vehicles including passenger cars, trucks, ships and spacecraft
- Industrial and factory automation, as well as medical, mining and laboratory equipment
Interface Introduction：
The CAN interface has two ways of connecting terminals and 2.54MM pins for users to choose, and the terminal matching resistance (120Ω) is made into a jumper cap interface (plug in when need to use the resistance, and unplug it when not in use) , so that users can easily use this resistance for simple communication experiments or for multi-node projects.
Definition of Interfaces
1. Terminal matching resistance (120Ω) selection, short circuit -> select 120Ω, open circuit -> do not select 120Ω
2. CAN signal interface
3. Control interface for CAN controller side
4. Power Indicator
Hardware Connection：
We provide the communication routines of STM32F103 Microcontrollers for CAN HAT, and use the CAN controller that comes with STM32 to realize communication control of CAN transceiver.
* Hardware Connection :
| STM32F103 | CAN HAT |
| 3V3 | 3V3 |
| GND | GND |
| PA11 | CANRX |
| PA12 | CANTX |
WIKI
Package Contents
- CAN HAT x1
- Black Jumper Cap x1
