ZHCSN19 december   2020 TMUXHS4412

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
    1.     Pin Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 High-Speed Performance Parameters
    7. 6.7 Switching Characteristics
    8. 6.8 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Output Enable and Power Savings
      2. 7.3.2 Data Line Biasing
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 PCIe Lane Muxing
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Pin-to-pin Passive versus Redriver Option
        4. 8.2.1.4 Application Curves
    3. 8.3 Systems Examples
      1. 8.3.1 PCIe Muxing for Hybrid SSD
      2. 8.3.2 DisplayPort Main Link
      3. 8.3.3 USB 4.0 / TBT 3.0 Demuxing
  10. 9 Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 接收文档更新通知
    2. 11.2 支持资源
    3. 11.3 Trademarks
    4. 11.4 静电放电警告
    5. 11.5 术语表
  13. 12Mechanical, Packaging, and Orderable Information

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7.3.1 Output Enable and Power Savings

The TMUXHS4412 has two power modes, active/normal operating mode and standby/shutdown mode. During standby mode, the device consumes very-little current to achieve ultra low power in systems where power saving is critical. To enter standby mode, the PD control pin is pulled high through a resistor and must remain high. For active/normal operation, the PD control pin should be pulled low to GND or dynamically controlled to switch between H or L.