SLLSEI0E July   2015  – July 2024 TUSB4020BI

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 #GUID-E9510BAC-794F-43CD-A047-0D0FFB7C50BE/ABSMAXNOTE
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 3.3V I/O Electrical Characteristics
    6. 5.6 Hub Input Supply Current
    7. 5.7 Power-Up Timing Requirements
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Battery Charging Features
      2. 6.3.2 USB Power Management
      3. 6.3.3 Clock Generation
      4. 6.3.4 Power-Up and Reset
    4. 6.4 Device Functional Modes
      1. 6.4.1 External Configuration Interface
    5. 6.5 Programming
      1. 6.5.1 One-Time Programmable (OTP) Configuration
      2. 6.5.2 I2C EEPROM Operation
      3. 6.5.3 SMBus Target Operation
    6. 6.6 Register Maps
      1. 6.6.1 Configuration Registers
        1. 6.6.1.1  ROM Signature Register (offset = 0h) [reset = 0h]
        2. 6.6.1.2  Vendor ID LSB Register (offset = 1h) [reset = 51h]
        3. 6.6.1.3  Vendor ID MSB Register (offset = 2h) [reset = 4h]
        4. 6.6.1.4  Product ID LSB Register (offset = 3h) [reset = 25h]
        5. 6.6.1.5  Product ID MSB Register (offset = 4h) [reset = 80h]
        6. 6.6.1.6  Device Configuration Register (offset = 5h) [reset = 1Xh]
        7. 6.6.1.7  Battery Charging Support Register (offset = 6h) [reset = 0Xh]
        8. 6.6.1.8  Device Removable Configuration Register (offset = 7h) [reset = 0Xh]
        9. 6.6.1.9  Port Used Configuration Register (offset = 8h) [reset = 0h]
        10. 6.6.1.10 PHY Custom Configuration Register (offset = 9h) [reset = 0h]
        11. 6.6.1.11 Device Configuration Register 2 (offset = Ah)
        12. 6.6.1.12 UUID Registers (offset = 10h to 1Fh)
        13. 6.6.1.13 Language ID LSB Register (offset = 20h)
        14. 6.6.1.14 Language ID MSB Register (offset = 21h)
        15. 6.6.1.15 Serial Number String Length Register (offset = 22h)
        16. 6.6.1.16 Manufacturer String Length Register (offset = 23h)
        17. 6.6.1.17 Product String Length Register (offset = 24h)
        18. 6.6.1.18 Serial Number Registers (offset = 30h to 4Fh)
        19. 6.6.1.19 Manufacturer String Registers (offset = 50h to 8Fh)
        20. 6.6.1.20 Product String Registers (offset = 90h to CFh)
        21. 6.6.1.21 Additional Feature Configuration Register (offset = F0h)
        22. 6.6.1.22 Charging Port Control Register (offset = F2h)
        23. 6.6.1.23 Device Status and Command Register (offset = F8h)
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Crystal Requirements
      2. 7.1.2 Input Clock Requirements
    2. 7.2 Typical Applications
      1. 7.2.1 Upstream Port Implementation
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curves
      2. 7.2.2 Downstream Port 1 Implementation
      3. 7.2.3 Downstream Port 2 Implementation
      4. 7.2.4 VBUS Power Switch Implementation
      5. 7.2.5 Clock, Reset, and Miscellaneous
      6. 7.2.6 Power Implementation
    3. 7.3 Power Supply Recommendations
      1. 7.3.1 Power Supply
      2. 7.3.2 Downstream Port Power
      3. 7.3.3 Ground
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 Placement
        2. 7.4.1.2 Package Specific
        3. 7.4.1.3 Differential Pairs
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

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

6.6.1.4 Product ID LSB Register (offset = 3h) [reset = 25h]

Figure 6-5 Register Offset 3h
76543210
00100101
R/WR/WR/WR/WR/WR/WR/WR/W
LEGEND: R/W = Read/Write; R = Read only; –n = value after reset
Table 6-7 Product ID LSB Register
BitFieldTypeResetDescription
7:0productIdLsbR/W25hProduct ID LSB. Least significant byte of the product ID assigned by TI. The default value of this register is 25h representing the LSB of the product ID assigned by TI. The value reported in the USB 2.0 device descriptor is the value of this register bit wise XORed with 00000010b. The value can be overwritten to indicate a customer product ID.
This field is read/write unless the OTP ROM VID and OTP ROM PID values are non-zero. If both values are non-zero, the value when reading this register shall reflect the OTP ROM value.