Waveshare SN65HVD230 CAN Communication Module 3.3V CAN Bus Transceiver with ESD Protection Pin-Compatible with PCA82C250 Waveshare SN65HVD230 CAN Module 3.3V Transceiver ESD 1Mbps

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Waveshare SN65HVD230 CAN Communication Module 3.3V CAN Bus Transceiver with ESD Protection Pin-Compatible with PCA82C250

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SN65HVD230 CAN Module Product Overview

The SN65HVD230 CAN Module from Waveshare is a CAN bus transceiver module based on the Texas Instruments SN65HVD230 chip, designed to convert TTL-level signals from microcontrollers to differential signals for Controller Area Network (CAN) communication. The module is pin-compatible with the PCA82C250 and serves as a low-power replacement for it. Powered by a single 3.3V supply, it supports communication rates up to 1Mbps. Onboard ESD protection provides bus pin ESD protection exceeding ±16kV HBM. The module conveniently connects microcontrollers to CAN networks and is widely used in industrial automation, motor control, robotics, automotive electronics, building control, and other fields requiring CAN bus communication.

SN65HVD230 CAN Module Key Features

The SN65HVD230 CAN Module features the TI original SN65HVD230 chip, a CAN bus transceiver specifically designed for 3.3V systems. The module is pin-compatible with PCA82C250, allowing direct replacement of 5V CAN transceivers without PCB modifications. It supports 1Mbps maximum data rate and complies with the ISO 11898-2 high-speed CAN physical layer standard. Bus pins feature ±16kV HBM ESD protection to prevent electrostatic damage. High input impedance allows up to 120 nodes on a single bus. The SN65HVD230 CAN Module offers adjustable driver output transition times to improve signal quality and radiation performance. Thermal shutdown protection and open-circuit fail-safe design ensure stable operation under abnormal conditions. Unpowered nodes do not disturb the bus. Operating voltage is 3.3V with maximum supply current of 17mA, and the operating temperature ranges from -40℃ to +85℃. The chip supports a low-current standby mode with typical standby current of only 370μA. The module comes in a compact SOIC-8 package.

Waveshare SN65HVD230 CAN Communication Module 3.3V CAN Bus Transceiver with ESD Protection Pin-Compatible with PCA82C250 Waveshare SN65HVD230 CAN Module 3.3V Transceiver ESD 1Mbps
SN65HVD230 CAN Module Applications

The SN65HVD230 CAN Module is widely used in:

Industrial Automation: CAN bus communication for PLCs, sensors, actuators, and industrial control systems

Motor & Robotics Control: Servo drives, stepper motors, robot controllers

Automotive Electronics: On-board diagnostics (OBD), body control modules, ECU communication

Building & Temperature Control (HVAC) : Building automation, HVAC system networking

Telecom & Base Station Control: Base station status monitoring and control

CAN Bus Protocol Standards: Supports CANopen, DeviceNet, and CAN Kingdom high-layer protocols

UPS Control: Uninterruptible power supply status monitoring and control

SN65HVD230 CAN Module Advantages and Highlights

Based on the TI original SN65HVD230 chip, the SN65HVD230 CAN Module offers high reliability, low power consumption, and strong anti-interference capability, making it an ideal choice for 3.3V CAN bus communication. The module is pin-compatible with PCA82C250, allowing direct replacement of 5V CAN transceivers without PCB modifications. With support for up to 1Mbps communication rates, it meets the demands of high-speed CAN bus applications. ±16kV HBM ESD protection ensures stable operation in electrostatic environments. High input impedance allows up to 120 nodes on a single bus for large-scale networking applications. Adjustable driver transition times improve signal quality and radiation performance. Thermal shutdown protection and open-circuit fail-safe design provide comprehensive system protection. The low-current standby mode (370μA typical) effectively reduces system power consumption. The compact SOIC-8 package facilitates integration into various embedded systems. Waveshare provides complete supporting documentation, including circuit schematics and related PDF materials, enabling rapid development.

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Waveshare SN65HVD230 CAN Communication Module 3.3V CAN Bus Transceiver with ESD Protection Pin-Compatible with PCA82C250 Waveshare SN65HVD230 CAN Module 3.3V Transceiver ESD 1Mbps

FAQs:

Q1: What is the operating voltage of the SN65HVD230 CAN module?
A1: SN65HVD230 CAN Module operates at 3.3V and cannot be directly connected to a 5V power supply. The I/O logic level is also 3.3V — do not drive the TXD pin with 5V signals, as this may damage the chip.

Q2: Is the SN65HVD230 compatible with the PCA82C250?
A2: Yes, the SN65HVD230 CAN Module is pin-compatible with PCA82C250 and serves as a low-power replacement for it. This means it can be directly swapped into most PCB designs that use the PCA82C250 without board layout modifications.

Q3: What is the maximum communication rate supported by the module?
A3: The SN65HVD230 CAN Module supports a maximum data rate of 1Mbps. This rate complies with the ISO 11898-2 high-speed CAN physical layer standard.

Q4: What is the ESD protection capability of the module?
A4: The SN65HVD230 CAN Module's bus pins feature ±16kV HBM (Human Body Model) ESD protection to effectively prevent electrostatic discharge damage. This makes it more reliable in industrial environments with higher electrostatic risks.

Q5: How many nodes can be connected on a single CAN bus?
A5: The high input impedance of the SN65HVD230 CAN Module allows up to 120 nodes on a single CAN bus. The actual number of nodes is also affected by bus length, communication rate, cable characteristics, and other factors — verification in the actual application is recommended.

Q6: What low‑power modes does the module support?
A6: The SN65HVD230 CAN Module supports a low-current standby mode with typical standby current of only 370μA. Additionally, the SN65HVD231 in the same family offers an ultra‑low current sleep mode with typical sleep current of only 40nA.

Q7: Which CAN higher‑layer protocols does the module support?
A7: As a physical layer transceiver, the SN65HVD230 CAN Module supports all CAN‑based high‑layer protocols, including CANopen, DeviceNet, and CAN Kingdom. The implementation of specific protocols depends on the upper‑layer controller and software.

Q8: Does the module include a CAN controller?
A8: No. The SN65HVD230 CAN Module contains only the CAN transceiver (physical layer) and does not include a CAN controller. It must be used with an MCU that has a built‑in CAN controller (such as STM32, TMS320, etc.) or a separate CAN controller chip (such as MCP2515).

Q9: What is the operating temperature range of the module?
A9: The SN65HVD230 CAN Module operates within a temperature range of ‑40℃ to +85℃. This industrial‑grade temperature range allows it to adapt to various harsh operating environments.

Q10: What protection features does the module have?
A10: The SN65HVD230 CAN Module integrates multiple protection features: thermal shutdown protection (prevents overheating damage), open‑circuit fail‑safe design (ensures known output state when the bus is open), glitch‑free power‑up and power‑down protection (supports hot‑plugging applications), and unpowered nodes do not disturb the bus (powered‑down nodes do not affect bus communication).