SLLSEF7 March   2014 TUSB8020B-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (Continued)
  6. 6 Terminal Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 Handling Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 3.3-V I/O Electrical Characteristics
    6. 7.6 Power-Up Timing Requirements
    7. 7.7 Hub Input Supply Current
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Battery Charging Features
      2. 8.3.2 USB Power Management
      3. 8.3.3 One Time Programmable (OTP) Configuration
      4. 8.3.4 Clock Generation
        1. 8.3.4.1 Crystal Requirements
        2. 8.3.4.2 Input Clock Requirements
      5. 8.3.5 Power Up and Reset
    4. 8.4 Device Functional Modes
      1. 8.4.1 External Configuration Interface
      2. 8.4.2 I2C EEPROM Operation
      3. 8.4.3 SMBus Slave Operation
    5. 8.5 Register Maps
      1. 8.5.1 Configuration Registers
        1. 8.5.1.1  ROM Signature Register
        2. 8.5.1.2  Vendor ID LSB Register
        3. 8.5.1.3  Vendor ID MSB Register
        4. 8.5.1.4  Product ID LSB Register
        5. 8.5.1.5  Product ID MSB Register
        6. 8.5.1.6  Device Configuration Register
        7. 8.5.1.7  Battery Charging Support Register
        8. 8.5.1.8  Device Removable Configuration Register
        9. 8.5.1.9  Port Used Configuration Register
        10. 8.5.1.10 PHY Custom Configuration Register
        11. 8.5.1.11 Device Configuration Register 2
        12. 8.5.1.12 UUID Registers
        13. 8.5.1.13 Language ID LSB Register
        14. 8.5.1.14 Language ID MSB Register
        15. 8.5.1.15 Serial Number String Length Register
        16. 8.5.1.16 Manufacturer String Length Register
        17. 8.5.1.17 Product String Length Register
        18. 8.5.1.18 Serial Number Registers
        19. 8.5.1.19 Manufacturer String Registers
        20. 8.5.1.20 Product String Registers
        21. 8.5.1.21 Additional Feature Configuration Register
        22. 8.5.1.22 Charging Port Control Register
        23. 8.5.1.23 Device Status and Command Register
  9. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Upstream Port Implementation
        2. 9.2.2.2 Downstream Port 1 Implementation
        3. 9.2.2.3 Downstream Port 2 Implementation
        4. 9.2.2.4 VBUS Power Switch Implementation
        5. 9.2.2.5 Clock, Reset, and Misc
        6. 9.2.2.6 Power Implementation
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Power Supply
    2. 10.2 Downstream Port Power
    3. 10.3 Ground
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Placement
      2. 11.1.2 Package Specific
      3. 11.1.3 Differential Pairs
    2. 11.2 Layout Example
      1. 11.2.1 Upstream Port
      2. 11.2.2 Downstream Port
      3. 11.2.3 Thermal Pad
  12. 12Device and Documentation Support
    1. 12.1 Trademarks
    2. 12.2 Electrostatic Discharge Caution
    3. 12.3 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

1 Features

  • Two Port USB 3.0 Compliant Hub
  • USB 2.0 Hub Features
    • Multi Transaction Translator (MTT) Hub: Two Transaction Translators
    • Four Asynchronous Endpoint Buffers Per Transaction Translator
  • Supports USB Battery Charging Specification Revision 1.2
    • CDP Mode (Upstream Port Connected)
    • DCP Mode (Upstream Port Unconnected)
    • DCP Mode Complies with Chinese Telecommunications Industry Standard YD/T 1591-2009
  • Support D+/D- Divider Mode.
  • Supports Operation as a USB 3.0 or USB 2.0 Compound Device
  • Per Port or Ganged Power Switching and Over-Current Notification Inputs
  • OTP ROM, Serial EEPROM or I2C/SMBus Slave Interface for Custom Configurations:
    • VID and PID
    • Port Customizations
    • Manufacturer and Product Strings (not by OTP ROM)
    • Serial Number (not by OTP ROM)
  • Application Feature Selection Using Terminal Selection or EEPROM/ or I2C/SMBus Slave Interface
  • Provides 128-Bit Universally Unique Identifier (UUID)
  • Supports On-Board and In-System OTP/EEPROM Programming Via the USB 2.0 Upstream Port
  • Single Clock Input, 24-MHz Crystal or Oscillator
  • No special driver requirements; works seamlessly on any operating system with USB stack support

2 Applications

  • Automotive
  • Computer Systems
  • Docking Stations
  • Monitors
  • Set-Top Boxes

3 Description

The TUSB8020B-Q1 is a two-port USB 3.0 compliant hub. It provides simultaneous SuperSpeed USB and high-speed/full-speed connections on the upstream port and provides SuperSpeed USB, high-speed, full-speed, or low-speed connections on the downstream ports. When the upstream port is connected to an electrical environment that only supports high-speed or full-speed/low-speed connections, SuperSpeed USB connectivity is disabled on the downstream ports. When the upstream port is connected to an electrical environment that only supports full-speed/low-speed connections, SuperSpeed USB and high-speed connectivity are disabled on the downstream ports.

The TUSB8020B-Q1 supports per port or ganged power switching and over-current protection, and supports battery charging applications.

An individually port power controlled hub switches power on or off to each downstream port as requested by the USB host. Also when an individually port power controlled hub senses an over-current event, only power to the affected downstream port will be switched off.

A ganged hub switches on power to all its downstream ports when power is required to be on for any port. The power to the downstream ports is not switched off unless all ports are in a state that allows power to be removed. Also when a ganged hub senses an over-current event, power to all downstream ports will be switched off.

Device Information

ORDER NUMBER PACKAGE BODY SIZE
TUSB8020BIPHPRQ1 HTQFP (48) 7mm × 7mm
TUSB8020BIPHPQ1
typ_app_llsef7.gif

4 Revision History

Date Revision Notes
March 2014 * Initial release.