JAJSGJ1H November   2002  – November 2018 SN65HVD233 , SN65HVD234 , SN65HVD235

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      ブロック図
  4. 4 改訂履歴
  5. 5 概要（続き）
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
    1.     Pin Functions
  8. 8 Specifications
    1. 8.1  Absolute Maximum Ratings
    2. 8.2  ESD Ratings
    3. 8.3  Recommended Operating Conditions
    4. 8.4  Thermal Information
    5. 8.5  Power Dissipation Ratings
    6. 8.6  Electrical Characteristics: Driver
    7. 8.7  Electrical Characteristics: Receiver
    8. 8.8  Switching Characteristics: Driver
    9. 8.9  Switching Characteristics: Receiver
    10. 8.10 Switching Characteristics: Device
    11. 8.11 Typical Characteristics
  9. 9 Parameter Measurement Information
  10. 10Detailed Description
    1. 10.1 Overview
    2. 10.2 Functional Block Diagrams
    3. 10.3 Feature Description
      1. 10.3.1 Diagnostic Loopback (SN65HVD233)
      2. 10.3.2 Autobaud Loopback (SN65HVD235)
      3. 10.3.3 Slope Control
      4. 10.3.4 Standby
      5. 10.3.5 Thermal Shutdown
    4. 10.4 Device Functional Modes
      1. 10.4.1 Driver and Receiver
  11. 11Application and Implementation
    1. 11.1 Application Information
    2. 11.2 Typical Application
      1. 11.2.1 Design Requirements
        1. 11.2.1.1 Bus Loading, Length and Number of Nodes
        2. 11.2.1.2 CAN Termination
      2. 11.2.2 Detailed Design Procedure
      3. 11.2.3 Application Curve
    3. 11.3 System Example
      1. 11.3.1 ISO 11898 Compliance of SN65HVD23x Family of 3.3-V CAN Transceivers
        1. 11.3.1.1 Introduction
        2. 11.3.1.2 Differential Signal
        3. 11.3.1.3 Common-Mode Signal
        4. 11.3.1.4 Interoperability of 3.3-V CAN in 5-V CAN Systems
  12. 12Power Supply Recommendations
  13. 13Layout
    1. 13.1 Layout Guidelines
    2. 13.2 Layout Example
  14. 14デバイスおよびドキュメントのサポート
    1. 14.1 関連リンク
    2. 14.2 ドキュメントの更新通知を受け取る方法
    3. 14.3 コミュニティ・リソース
    4. 14.4 商標
    5. 14.5 静電気放電に関する注意事項
    6. 14.6 Glossary
  15. 15メカニカル、パッケージ、および注文情報

パッケージ・オプション

デバイスごとのパッケージ図は、PDF版データシートをご参照ください。

メカニカル・データ（パッケージ｜ピン）
  • D|8
サーマルパッド・メカニカル・データ
発注情報

10.3.1 Diagnostic Loopback (SN65HVD233)

The diagnostic loopback or internal loopback function of the SN65HVD233 is enabled with a high-level input on pin 5, LBK. This mode disables the driver output while keeping the bus pins biased to the recessive state. This mode also redirects the D data input (transmit data) through logic to the received data output pin), thus creating an internal loopback of the transmit to receive data path. This mimics the loopback that occurs normally with a CAN transceiver because the receiver loops back the driven output to the R (receive data) pin. This mode allows the host protocol controller to input and read back a bit sequence or CAN messages to perform diagnostic routines without disturbing the CAN bus. A typical CAN bus application is displayed in Figure 36.

If the LBK pin is not used it may be tied to ground (GND). However, it is pulled low internally (defaults to a low-level input) and may be left open if not in use.