SLLSEH3D July   2013  – September 2025 SN65HVD888

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings: JEDEC Specifications
    3. 5.3 ESD Ratings: IEC Specifications
    4. 5.4 Recommended Operating Conditions
    5. 5.5 Thermal Information
    6. 5.6 Electrical Characteristics
    7. 5.7 Power Dissipation Characteristics
    8. 5.8 Switching Characteristics
    9. 5.9 Typical Characteristics
  7. 6 Parameter Measurement information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Low-Power Standby Mode
      2. 7.3.2 Bus Polarity Correction
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Device Configuration
      2. 8.1.2 Bus Design
      3. 8.1.3 Cable Length Versus Data Rate
      4. 8.1.4 Stub Length
      5. 8.1.5 3 to 5V Interface
      6. 8.1.6 Noise Immunity
      7. 8.1.7 Transient Protection
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Design and Layout Considerations For Transient Protection
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Third-Party Products Disclaimer
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

8.1.5 3 to 5V Interface

Interfacing the SN65HVD888 to a 3V controller is easy. Because the 5V logic inputs of the transceiver accept 3V input signals they can be directly connected to the controller I/O. The 5V receiver output, R, however must be level-shifted by a Schottky diode and a 10k resistor to connect to the controller input (see Figure 8-4). When R is high, the diode is reverse biased and the controller supply potential lies at the controller RxD input. When R is low, the diode is forward biased and conducts. In this case only the diode forward voltage of 0.2V lies at the controller RxD input.

SN65HVD888 3-V to 5-V InterfaceFigure 8-4 3-V to 5-V Interface