ZHCSB94C July   2013  – January 2018 SN65HVD888

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      支持极性纠正 (POLCOR) 的典型网络应用
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings: JEDEC Specifications
    3. 6.3 ESD Ratings: IEC Specifications
    4. 6.4 Recommended Operating Conditions
    5. 6.5 Thermal Information
    6. 6.6 Electrical Characteristics
    7. 6.7 Power Dissipation Characteristics
    8. 6.8 Switching Characteristics
    9. 6.9 Typical Characteristics
  7. 7 Parameter Measurement information
    1. 7.1 Driver
    2. 7.2 Receiver
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Low-Power Standby Mode
      2. 8.3.2 Bus Polarity Correction
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Device Configuration
      2. 9.1.2 Bus Design
      3. 9.1.3 Cable Length Versus Data Rate
      4. 9.1.4 Stub Length
      5. 9.1.5 3- to 5-V Interface
      6. 9.1.6 Noise Immunity
      7. 9.1.7 Transient Protection
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Design and Layout Considerations For Transient Protection
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resources
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 Glossary
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.4 Device Functional Modes

Table 1. Driver Pin Functions

INPUTENABLEOUTPUTSDESCRIPTION
DDEAB
NORMAL MODE
H H H L Actively drives bus High
L H L H Actively drives bus Low
X L Z Z Driver disabled
X OPEN Z Z Driver disabled by default
OPEN H H L Actively drives bus High
POLARITY-CORRECTING MODE(1)
H H L H Actively drives bus Low
L H H L Actively drives bus High
X L Z Z Driver disabled
X OPEN Z Z Driver disabled by default
OPEN H L H Actively drives bus Low
(1) The polarity-correcting mode is entered when VID < VIT– and t > tFS and DE = low. This state is latched when RE turns from Low to High.

Table 2. Receiver Pin Functions

DIFFERENTIAL INPUTENABLEOUTPUTDESCRIPTION
VID = VA – VBRER
NORMAL MODE
VIT+ < VID L H Receive valid bus High
VIT– < VID < VIT+ L ? Indeterminate bus state
VID < VIT– L L Receive valid bus Low
X H Z Receiver disabled
X OPEN Z Receiver disabled
Open, short, idle Bus L ? Indeterminate bus state
POLARITY-CORRECTING MODE(1)
VIT+ < VID L L Receive valid bus Low
VIT– < VID < VIT+ L ? Indeterminate bus state
VID < VIT– L H Receive polarity corrected bus High
X H Z Receiver disabled
X OPEN Z Receiver disabled
Open, short, idle Bus L ? Indeterminate bus state
(1) The polarity-correcting mode is entered when VID < VIT– and t > tFS and DE = low. This state is latched when RE turns from Low to High.
SN65HVD888 schematics_sllseh3.gifFigure 15. Equivalent Input and Output Schematic Diagrams