SLASF52A August   2022  – November 2022 TMUXHS221

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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 – S-Parameters
    9. 6.9  Typical Characteristics – Eye Diagrams
    10.     16
    11. 6.10 Typical Characteristics – RON
  7. 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
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Routing Debug Signals to USB Port
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
    3. 8.3 Systems Examples
      1. 8.3.1 PCIe Clock Muxing
      2. 8.3.2 USB-C SBU Muxing
      3. 8.3.3 Switching USB Port
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.2.1 Routing Debug Signals to USB Port

Many electronic end-equipment such as PCs, media players, point of sales registers, printers, cameras, headphones, smartphones, tablets, and so forth use USB ports (such as USB Type-A, USB Type-B, or USB Type-C™) for in-field or factory debug interface. In such use cases debug signals are routed to USB 2.0 pins of a USB port through a mux or demux device. TMUXHS221 is a good fit for such use cases with its flexible data handling capability. TMUXHS221 virtually can handle any debug interface signals as long as they are limited to −0.3 V (minimum) to 3.6 V (maximum). The device also provides very low attenuation to both USB 2.0 and debug signals with its very low channel ON resistance, high bandwidth, and low reflection.

Figure 8-1 shows a system implementation where USB 2.0 signals are multiplexed with debug interface signals into DP/DM wires of a USB port.

Figure 8-1 Routing Debug Signals to USB Port