TUSB8040A is not recommended for new designs.
This product continues to be in production to support existing customers. Please consider one of these alternatives:
Similar functionality to the compared device.
TUSB8042A ACTIVE Four-port USB 3.2 x1 gen1 hub This replacement device is a newer generation compliant with the latest USB specifications.

Product details

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  • 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
    • Multi 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 Compliant Charging
      Downstream Port (CDP) when Upstream Port is
      Connected
    • Battery Charging 1.2 and Chinese Telecommunications
      Industry Standard YD/T 1591-2009 Compliant 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
    Over-Current 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 On-Board and In-System EEPROM Programming
    Via 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
  • 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
    • Multi 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 Compliant Charging
      Downstream Port (CDP) when Upstream Port is
      Connected
    • Battery Charging 1.2 and Chinese Telecommunications
      Industry Standard YD/T 1591-2009 Compliant 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
    Over-Current 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 On-Board and In-System EEPROM Programming
    Via 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

The TUSB8040A is a four-port USB 3.0 compliant hub and is available in a 100-pin QFN package. The device is designed for operation over the commercial temperature range of 0°C to 70°C.

The TUSB8040A 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 TUSB8040A supports up to four downstream ports. It 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.

The TUSB8040A is a four-port USB 3.0 compliant hub and is available in a 100-pin QFN package. The device is designed for operation over the commercial temperature range of 0°C to 70°C.

The TUSB8040A 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 TUSB8040A supports up to four downstream ports. It 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.

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Technical documentation

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Type Title Date
* Data sheet TUSB8040A Four-Port USB 3.0 Hub datasheet (Rev. F) 26 Sep 2013
Application note QFN and SON PCB Attachment (Rev. B) 24 Aug 2018
Application note Design Summary Multi-row Quad Flat No-lead (MRQFN) 29 Aug 2012
Application note TUSB8040A Design Guide 20 Jul 2012
User guide TUSB8040AEVM User's Guide 17 May 2012

Design & development

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Simulation model

TUSB8040A IBIS Model

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WQFN-MR (RKM) 100 View options

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