Speech Microcontroller
  USB 3.0 Controller
    ■ USB 3.0 Hub Controller
      - ET12U310A
      - ET12U311A
    ■ USB 3.0 Display SoC
      - ET12U320A
      - ET12U320B
      - ET12U321A
      - ET12U350
      - ET12U351
      - ET12U352
     

 


 

 

 
ET12U310A
USB 3.0 4-Port Hub Chip
General Description

ET12U310A is a highly integrated USB 3.0 four-port hub controller chip, supporting SuperSpeed, High-Speed, Full-Speed, and, Low-Speed USB devices. Its four downstream ports are compliant with CDP (Charging Downstream Port) of USB Battery Charging Specification, Revision 1.1. USB devices, such as MP3 player and mobile phone, can be charged by connecting to these charging downstream ports.

With complete low power management design, ET12U310A provides excellent USB transfer performance with the lowest power consumption. Moreover, MCU-less design architecture saves the BOM cost by replacing SPI Flash with I2C EEPROM on system. ET12U310A USB 3.0 4-port hub functions with the lowest power consumption and the lowest system BOM cost.

 
Key Features
  • Compliant with USB 3.0 Specification and pass USB-IF hub certification
  • Backward compatible with USB 2.0 Specification
  • Compliant with USB Battery Charging Specification, Revision 1.1
  • Support Multiple Transaction Translator (MTT) for USB 2.0 hub
  • Support power management and over-current detection for downstream ports
  • Support SuperSpeed U0/U1/U2/U3 link power management functions
  • Support USB 2.0 Link Power Management (LPM) L0/L1/L2/L3
  • Support I2C interface for external EEPROM for function configuration, customizable vendor ID, product ID, and device ID
 

Applications

  • Standalone hub
  • Monitor hub
  • PC/NB hub
  • PC docking station
  • Embedded system hub
  • USB hub compound device with keyboard, scanner, and printer
 
ET12U310A Block Diagram
 
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