SLLSEE5C February   2013  – December 2014 TUSB8040A1

PRODUCTION DATA.  

  1. 1 Device Overview
    1. 1.1 Features
    2. 1.2 Applications
    3. 1.3 Description
    4. 1.4 Functional Block Diagram
  2. 2Revision History
  3. 3Pin Configuration and Functions
    1. 3.1 Pin Diagram
    2. 3.2 Pin Descriptions
      1. 3.2.1 Signal Descriptions
      2. 3.2.2 Clock and Reset Signals
      3. 3.2.3 USB Upstream Signals
      4. 3.2.4 USB Downstream Signals
      5. 3.2.5 I2C/SMBUS Signals
      6. 3.2.6 Test and Miscellaneous Signals
      7. 3.2.7 Power Signals
  4. 4Specifications
    1. 4.1 Absolute Maximum Ratings
    2. 4.2 ESD Ratings
    3. 4.3 Recommended Operating Conditions
    4. 4.4 Thermal Information
    5. 4.5 3.3-V I/O Electrical Characteristics
    6. 4.6 Hub Input Supply Current
    7. 4.7 Timing and Switching Characteristics
      1. 4.7.1 Clock Generation
      2. 4.7.2 Crystal Requirements
      3. 4.7.3 Input Clock Requirements
  5. 5Detailed Description
    1. 5.1 Overview
    2. 5.2 Functional Block Diagram
    3. 5.3 Memory
    4. 5.4 I2C EEPROM Operation
    5. 5.5 SMBus Slave Operation
    6. 5.6 Configuration Registers
      1. 5.6.1  ROM Signature Register
      2. 5.6.2  Vendor ID LSB Register
      3. 5.6.3  Vendor ID MSB Register
      4. 5.6.4  Product ID LSB Register
      5. 5.6.5  Product ID MSB Register
      6. 5.6.6  Device Configuration Register
      7. 5.6.7  Battery Charging Support Register
      8. 5.6.8  Device Removable Configuration Register
      9. 5.6.9  Port Used Configuration Register
      10. 5.6.10 Reserved Register
      11. 5.6.11 Reserved Register
      12. 5.6.12 Language ID LSB Register
      13. 5.6.13 Language ID MSB Register
      14. 5.6.14 Serial Number String Length Register
      15. 5.6.15 Manufacturer String Length Register
      16. 5.6.16 Product String Length Register
      17. 5.6.17 Reserved Register
      18. 5.6.18 Serial Number Registers
      19. 5.6.19 Manufacturer String Registers
      20. 5.6.20 Product String Registers
      21. 5.6.21 Additional Feature Configuration Register
      22. 5.6.22 Reserved Register
      23. 5.6.23 Reserved Register
      24. 5.6.24 Device Status and Command Register
  6. 6Applications, Implementation, and Layout
    1. 6.1 Application Information
    2. 6.2 Typical Application
      1. 6.2.1 Design Requirements
      2. 6.2.2 Detailed Design Procedure
        1. 6.2.2.1 Upstream Port Implementation
        2. 6.2.2.2 Downstream Port 1 Implementation
        3. 6.2.2.3 Downstream Port 2 Implementation
        4. 6.2.2.4 Downstream Port 3 Implementation
        5. 6.2.2.5 Downstream Port 4 Implementation
        6. 6.2.2.6 VBUS Power Switch Implementation
        7. 6.2.2.7 Clock, Reset, I2C/SMBUS, and Misc
        8. 6.2.2.8 Power Implementation
      3. 6.2.3 Application Curve
      4. 6.2.4 Layout
        1. 6.2.4.1 Layout Guidelines
          1. 6.2.4.1.1 Part Placement
          2. 6.2.4.1.2 Board Layout Considerations
            1. 6.2.4.1.2.1  RKM Package - QFN (Quad Flat No-Lead)
            2. 6.2.4.1.2.2  Impedance
            3. 6.2.4.1.2.3  Critical Signals
            4. 6.2.4.1.2.4  Crystal
            5. 6.2.4.1.2.5  USB Interface
            6. 6.2.4.1.2.6  Differential Pair Signals
              1. 6.2.4.1.2.6.1 Internal Bond Wire Mismatch
            7. 6.2.4.1.2.7  Port Connectors
            8. 6.2.4.1.2.8  Reset Terminals
            9. 6.2.4.1.2.9  Miscellaneous Terminals
            10. 6.2.4.1.2.10 Power Control and Battery Charging Terminals
            11. 6.2.4.1.2.11 USB 2.0 Port Indicator LED Terminals
          3. 6.2.4.1.3 Power
            1. 6.2.4.1.3.1 Power
            2. 6.2.4.1.3.2 Downstream Port Power
            3. 6.2.4.1.3.3 Ground
        2. 6.2.4.2 Layout Example
      5. 6.2.5 Power Supply Recommendations
        1. 6.2.5.1 Power Up and Reset
  7. 7Device and Documentation Support
    1. 7.1 Trademarks
    2. 7.2 Electrostatic Discharge Caution
    3. 7.3 Glossary
  8. 8Mechanical, Packaging, and Orderable Information

Package Options

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

1 Device Overview

1.1 Features

  • USB 3.0 Compliant Hub, TID #330000037
    • Upstream Port Supports SuperSpeed USB, High-Speed and Full-Speed Connections
    • Supports Four Downstream Ports
    • Each of the Four Downstream Ports Support SuperSpeed USB, High-Speed, Full-Speed, or
      Low-Speed Connections
  • USB 2.0 Hub Features
    • Multiple Transaction Translator (MTT) Hub: Four Transaction Translators, One Per Port
    • Four Asynchronous Endpoint Buffers Per Transaction Translator (TT) for Better Throughput Than the USB-Required Minimum of Two Buffers Per TT
  • Supports Battery Charging Applications
    • Battery Charging 1.2 Charging Downstream Port (CDP) When Upstream Port is Connected
    • Battery Charging 1.2 and Chinese Telecommunications Industry Standard YD/T 1591-2009 Dedicated Charging Port (DCP) When Upstream Port Is Disconnected
  • Supports Operation as a USB 3.0 or USB 2.0 Compound Device
  • Supports Per Port or Ganged Power Switching and Overcurrent Notification Inputs
  • Provides the Following Status Outputs:
    • High-Speed Upstream Connection
    • High-Speed Upstream Port Suspended
    • SuperSpeed USB Upstream Connection
    • SuperSpeed USB Upstream Port Suspended
  • Optional Serial EEPROM or SMBus Slave Interface for Custom Configurations:
    • VID or PID
    • Manufacturer and Product Strings
    • Serial Number
  • Using Pin Selection or EEPROM and SMBus Slave Interface, Each Downstream Port Can Be Independently:
    • Enabled or Disabled
    • Marked as Removable or Permanently Attached (for Compound Applications)
    • Have Battery Charging Enabled or Disabled
  • Provides 128-Bit Universally Unique Identifier (UUID)
  • Optionally Supports USB 2.0 Compliant Port Indicator LEDs
  • Configurable SMBus Address to Support Multiple Devices on the Same SMBus Segment
  • Supports Onboard and In-System EEPROM Programming Through the USB 2.0 Upstream Port
  • Single Clock Input, 24-MHz Crystal or Oscillator
  • No Special Driver Requirements; Works Seamlessly With Any Operating System With USB Stack Support

1.2 Applications

  • Computer Systems
  • Docking Stations
  • Monitors
  • Set-top Boxes

1.3 Description

The TUSB8040A1 is a four-port USB 3.0 compliant hub and is available in a 100-pin WQFN package. The device is designed for operation over the commercial temperature range of 0°C to 70°C.

The TUSB8040A1 provides simultaneous SuperSpeed USB and high-speed or 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, full-speed, or 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 or low-speed connections, SuperSpeed USB and high-speed connectivity are disabled on the downstream ports.

The TUSB8040A1 supports up to four downstream ports. The device may be configured to report one to four downstream ports by pin selection or by an attached EEPROM or SMBus controller. The configuration options provide the ability to scale the device by application.

Figure 6-1 shows a typical view of the TUSB8040A1.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TUSB8040A1 WQFN (100) 9.00 mm x 9.00 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

1.4 Functional Block Diagram

TUSB8040A1 fbd_llsee5.gif