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SN65HVD230DR

3.3V CAN transceiver, 1Mbps, SOIC-8, slope control, 370nA standby, ISO 11898

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Manufacturer Part：

SN65HVD230DR

Package：

SOIC-8 (4.90 x 3.90 x 1.37 mm)

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Description

Product Overview

The SN65HVD230DR from Texas Instruments is a 3.3V CAN bus transceiver in a SOIC-8 package. Compliant with ISO 11898, it provides the physical layer for 3.3V MCU-based CAN systems at up to 1Mbps with slope control for EMC optimization.

Key Specifications

Protocol CAN 2.0A/B (ISO 11898)
Data Rate Up to 1 Mbps
Supply Voltage 3.0 V to 3.6 V
Standby Current 370 nA (typical)
Bus Voltage -8V to +14V (common mode)
Operating Temperature -40C to +85C

Features

  • 3.3V single supply eliminates need for 5V rail in CAN systems
  • 1Mbps CAN data rate with slope control for EMC optimization
  • 370nA ultra-low standby current for battery-powered applications
  • Three operating modes: high-speed, slope control, and standby
  • Reference voltage output (Vref) for CAN bus biasing
  • SOIC-8 standard footprint compatible with many CAN transceivers

Applications

  • 3.3V MCU-based CAN bus systems
  • Industrial automation and process control
  • Medical device CAN networks
  • Battery-powered CAN sensor nodes

The SN65HVD230DR from Texas Instruments is a 3.3V CAN bus transceiver in a SOIC-8 package, designed for CAN systems using 3.3V microcontrollers. The device eliminates the need for a separate 5V supply rail that traditional 5V CAN transceivers require, simplifying system design and reducing BOM cost. The transceiver is compliant with the ISO 11898 standard and supports data rates up to 1Mbps. Three operating modes are selectable via the RS pin: high-speed mode (RS connected to GND) for maximum data rate, slope control mode (RS connected through a resistor to GND) for reduced EMI at lower data rates, and standby mode (RS connected to VCC) with 370nA ultra-low current consumption. The reference voltage output (Vref pin) provides a stable 0.5VCC voltage for CAN bus biasing or comparator applications. The differential transmitter and receiver provide reliable communication with common-mode input voltage range of -8V to +14V. The 370nA standby current enables use in battery-powered CAN sensor nodes that spend most of their time in sleep mode.

The SN65HVD230DR converts between the MCU’s digital CAN signals and the differential bus signals at 3.3V supply. (1) Transmit: When the MCU drives TXD low (dominant), the transceiver drives CANH high and CANL low, creating a differential voltage on the bus. When TXD is high (recessive), both CANH and CANL are biased to approximately VCC/2 (1.65V). The 3.3V supply directly powers the bus driver, eliminating the 5V requirement. (2) Receive: The differential receiver monitors the CANH-CANL voltage. When the differential exceeds the threshold, RXD is driven low (dominant). (3) Slope Control: In slope control mode, the RS resistor limits the output slew rate, reducing high-frequency signal content that causes EMI. This allows operation at lower data rates (up to 125kbps) with improved EMC performance without external filters. (4) Standby: In standby mode, the transmitter is disabled and the receiver operates in low-power mode with 370nA current, monitoring the bus for dominant wake-up frames.

Pin Name Type Function
1 D Input Transmit data input
2 GND Ground Ground
3 VCC Power 3.3V supply
4 R Output Receive data output
5 Vref Output Reference voltage (VCC/2)
6 CANL I/O CAN bus low
7 CANH I/O CAN bus high
8 RS Input Mode select (high-speed/slope/standby)
  • 3.3V MCU-based CAN bus systems without 5V supply rail
  • Industrial automation and process control with slope control mode
  • Medical device CAN networks with 370nA standby current
  • Battery-powered CAN sensor nodes with ultra-low standby power
Manufacturer Part Number Package Notes
TI SN65HVD231DR SOIC-8 Loopback feature for diagnostics
TI SN65HVD233DR SOIC-8 3.3V CAN with diagnostic loopback
NXP TJA1040T SOIC-8 5V, improved EMC
Microchip MCP2561-E/SN SOIC-8 CAN FD, 5V, MCP2551 upgrade
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