SN65HVD3082EDR Detailed explanation of pin function specifications and circuit principle instructions

The "SN65HVD3082EDR" is a product manufactured by Texas Instruments. It is a CAN bus transceiver that complies with ISO 11898-2 and ISO 11898-5 standards for controller area network (CAN) communication systems.

Package Type

The "SN65HVD3082EDR" is available in the SOIC-8 package (Small Outline Integrated Circuit) and is specifically designed for automotive applications, industrial control, and other embedded systems that require robust communication capabilities.

Pin Function Specifications and Circuit Principle

The SN65HVD3082EDR typically comes with 8 pins, so we’ll provide a detailed description of each of those pins and their functions. Here is a complete table of the 8 pins, with a detailed function description for each:

Pin Number Pin Name Pin Function Description 1 VCC This pin is the power supply pin for the transceiver. It provides the necessary voltage (typically 3.3V or 5V, depending on the configuration) to the device. 2 CANH This is the CAN high pin. It carries the high voltage of the differential signal in CAN bus communication. It is used in differential signal communication. 3 CANL This is the CAN low pin. It carries the low voltage of the differential signal in CAN bus communication. It works in conjunction with CANH for differential signaling. 4 GND Ground pin. It provides the reference ground connection for the device and all connected circuits. 5 TXD (Transmit Data) This is the transmit data input pin for the device. It receives data from the microcontroller or the system controller that is to be transmitted on the CAN bus. 6 RXD (Receive Data) This is the receive data output pin. It provides the received data from the CAN bus to the microcontroller or system controller. 7 EN (Enable) This is the enable pin. When it is driven low, the transceiver is disabled and goes into a standby mode. When high, the transceiver is active and functional. 8 VIO This pin is the voltage input for the I/O interface . It is typically used for interfacing with microcontrollers or other devices that operate on different voltages (like 5V or 3.3V).

Pin Count and Usage Explanation

The SN65HVD3082EDR transceiver has 8 pins in total. Each of these pins is critical for the operation of the device, ensuring proper transmission and reception of data on the CAN bus and enabling communication between the microcontroller and the network.

FAQs about SN65HVD3082EDR

Here are 20 frequently asked questions (FAQs) regarding the SN65HVD3082EDR:

1. What is the voltage range for the SN65HVD3082EDR?

Answer: The operating voltage for the SN65HVD3082EDR is typically between 3.3V and 5V, depending on the system configuration.

2. How many pins does the SN65HVD3082EDR have?

Answer: The SN65HVD3082EDR has 8 pins in total.

3. What is the function of the VCC pin?

Answer: The VCC pin is the power supply input for the device, providing the necessary voltage for operation.

4. What does CANH and CANL represent in this IC?

Answer: CANH (CAN High) and CANL (CAN Low) represent the two differential signal lines used in CAN bus communication.

5. What is the purpose of the GND pin?

Answer: The GND pin serves as the ground reference for the device and the entire communication system.

6. What is the function of the TXD pin?

Answer: The TXD pin is used for transmitting data from the microcontroller to the CAN bus.

7. How does the RXD pin work?

Answer: The RXD pin is used to receive data from the CAN bus to the microcontroller or system controller.

8. What happens when the EN pin is set to low?

Answer: When the EN pin is set to low, the transceiver enters standby mode and stops operation.

9. Can the SN65HVD3082EDR operate at both 3.3V and 5V?

Answer: Yes, it can operate at both 3.3V and 5V depending on the system design and the power supply provided.

10. Is the SN65HVD3082EDR compatible with other CAN transceivers?

Answer: Yes, it is designed to be fully compliant with ISO 11898-2, making it compatible with other standard CAN transceivers.

11. What is the maximum data rate supported by the SN65HVD3082EDR?

Answer: The SN65HVD3082EDR supports a maximum data rate of 1 Mbps.

12. Can the SN65HVD3082EDR be used in automotive applications?

Answer: Yes, it is specifically designed for use in automotive applications due to its robust nature and compliance with automotive standards.

13. What is the power consumption of the SN65HVD3082EDR?

Answer: The typical power consumption is low, making it suitable for embedded and battery-powered applications.

14. How do you enable the transceiver for communication?

Answer: The transceiver is enabled by setting the EN pin high.

15. What is the maximum bus voltage for the SN65HVD3082EDR?

Answer: The device can handle up to 40V for bus voltage.

16. Is the SN65HVD3082EDR suitable for industrial applications?

Answer: Yes, it is widely used in industrial control systems for CAN communication.

17. How do I know if the SN65HVD3082EDR is in standby mode?

Answer: If the EN pin is low, the device is in standby mode and will not transmit or receive data.

18. Can I use the SN65HVD3082EDR with a 3.3V microcontroller?

Answer: Yes, the SN65HVD3082EDR can interface with a 3.3V microcontroller, provided the appropriate voltage levels are supplied.

19. What is the default state of the RXD pin when the transceiver is idle?

Answer: The RXD pin will be in a recessive state (high) when the transceiver is idle.

20. Can I use the SN65HVD3082EDR in an automotive network with multiple nodes?

Answer: Yes, it is ideal for use in automotive networks with multiple nodes communicating over the CAN bus.

Final Remarks

The SN65HVD3082EDR is a versatile and reliable CAN bus transceiver with a clear and straightforward pin function layout. It is compatible with a variety of automotive, industrial, and embedded systems that require robust communication over CAN networks. The provided FAQs and pin function descriptions should give you a comprehensive understanding of its features and usage.