SuperSpeed USB (USB 3.0) 4–port Hub Controller

SuperSpeed USB (USB 3.0) 4–port Hub Controller - TUSB8040
Datasheet Errata

Not Recommended for New Designs (NRND)

Replaced By TUSB8041A– The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.

TI does not recommend using this part in a new design. This product continues to be in production to support existing customers.


The TUSB8040 is USB 3.0 compliant hub available in an 80-pin QFP package. The device is designed for operation over the commercial temperature range of 0°C to 70°C.

The TUSB8040 provides simultaneous SuperSpeed and high-speed/full-speed connections on the upstream port and provides SuperSpeed, 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 connectivity is disabled on the downstream ports. When the upstream port is connected to an electrical environment that only supports full-speed/lowspeed connections, SuperSpeed and high-speed connectivity are disabled on the downstream ports.

The TUSB8040 supports up to four downstream ports. It may be configured to report one to four downstream ports by pin selection or an attached EEPROM or SMBus controller. The configuration options provide the ability to scale the device by application.


    • USB 3.0 Compliant Four Port Hub, TID# 330000003
      • Upstream Port Supports SuperSpeed, High-Speed
        and Full-Speed Connections
      • Each of the Four Downstream Ports Support SuperSpeed,
        High-Speed, Full-Speed/Low-Speed Connections
    • USB 2.0 Hub Features
      • Multi Transaction Translator (MTT) Hub:
        Four Transaction Translators, One Per Port
      • Four (Over USB Required Minimum of Two) Asynchronous
        Endpoint Buffers Per Transaction Translator for
        Better Throughput
    • Supports Charging Downstream Port (CDP) Applications
      • Battery Charging 1.2 Compliant
    • Supports Operation as a USB 3.0 or USB 2.0 Compound
    • Supports Per Port or Ganged Power Switching and
      Over-Current Protection
    • Provides the following status outputs:
      • High-Speed Upstream Connection
      • High-Speed Upstream Port Suspended
      • SuperSpeed Upstream Connection
      • SuperSpeed Upstream Port Suspended
    • Optional Serial EEPROM or SMBus Slave Interface
      for Custom Configurations:
      • VID/PID
      • Manufacturer and Product Strings
      • Serial Number
    • Using Pin Selection or the EEPROM/SMBus Slave
      Interface, Each Downstream Port Can Be
      • 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
    • 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

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