SJA1000T/N,118 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including SJA1000T/N,118 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for SJA1000T/N,118 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.
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Key features of the SJA1000T/N,118 include:
1. CAN 2.0A/B compliant.
2. Supports standard and extended message identifiers.
3. Up to 1 Mbps data rate.
4. Multiple receive and transmit buffers.
5. Error detection and handling.
6. Bus arbitration and message prioritization.
Now, let's delve into a specific application scenario and provide a detailed circuit connection for using four SJA1000T/N,118 chips in an automotive context for a car's communication system.
Application Scenario: Automotive Communication System
In an automotive communication system, multiple SJA1000T/N,118 chips can be used to facilitate communication between various vehicle control units (ECUs). Each ECU may have its own SJA1000T/N,118 chip for CAN communication. The following is a detailed circuit connection for one of these ECUs:
Circuit Connection: ECU with SJA1000T/N,118
Components needed:
- 1x SJA1000T/N,118 CAN controller chip.
- 1x Microcontroller for ECU control.
- 1x CAN transceiver chip (e.g., MCP2551).
- Resistors, capacitors, and power supply.
1. Power Supply Connection:
- Connect VCC (Pin 10) of SJA1000T/N,118 to the 5V power supply.
- Connect GND (Pin 20) of SJA1000T/N,118 to the ground.
2. Microcontroller Interface:
- Connect TXD (Pin 8) of SJA1000T/N,118 to the microcontroller's TX pin.
- Connect RXD (Pin 9) of SJA1000T/N,118 to the microcontroller's RX pin.
3. CAN Transceiver:
- Connect the CANH and CANL pins of the SJA1000T/N,118 to the corresponding pins of the CAN transceiver.
- Connect the VCC and GND of the CAN transceiver to the 5V power supply and ground, respectively.
4. Crystal Oscillator:
- Connect a crystal oscillator circuit (crystal and capacitors) to the XTAL1 (Pin 1) and XTAL2 (Pin 2) of SJA1000T/N,118 for clock generation.
5. Termination Resistors:
- Depending on the bus topology, consider placing termination resistors (typically 120 ohms) at both ends of the CAN bus to minimize signal reflections.
6. Power-On Initialization:
- Implement power-on initialization routines in the microcontroller to configure the SJA1000T/N,118 chip for the desired baud rate, filter settings, and interrupt handling.
7. Error Handling and Message Processing:
- Develop software routines in the microcontroller to handle CAN bus errors and process incoming and outgoing messages.
Considerations:
- Ensure that the SJA1000T/N,118 chips are correctly configured for the desired CAN baud rate and filter settings.
- Implement proper error handling mechanisms to handle bus errors and ensure data integrity.
- Develop a communication protocol for the ECUs to exchange messages effectively and prioritize critical data.
- Ensure that all ground connections are properly connected to prevent ground loops.
- Monitor the CAN bus for errors and ensure that the bus is well-terminated to minimize signal reflections.
This detailed circuit connection and considerations are essential when designing an automotive communication system using multiple SJA1000T/N,118 chips to enable reliable and efficient communication between various vehicle ECUs.
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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
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