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Texas Instruments TUSB8042A Four-port USB 3.2x1 Gen1 Hubs

Texas Instruments TUSB8042A Four-Port USB 3.2x1 Gen1 Hubs provide simultaneous SuperSpeed USB and high-speed/full-speed connections on the upstream port. The Texas Instruments TUSB8042A also provides SuperSpeed USB, high-speed, full-speed, or low-speed connections on the downstream ports. SuperSpeed USB connectivity is disabled 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.

Features

  • Four-port USB 3.2 x1 Gen1 (5Gbps) hub
  • USB 2.0 hub features
    • Multi transaction translator (MTT) hub: four transaction translators
    • Two asynchronous endpoint buffers per transaction translator
  • Supports battery charging:
    • Supports D+/D- divider charging port (ACP1, ACP2, and ACP3) when the upstream port is unconnected or not configured
    • Supports automatic mode for transition between DCP or ACP modes when the upstream port is unconnected
    • Supports galaxy charging
    • CDP mode (upstream port connected)
    • DCP mode (upstream port unconnected)
    • DCP mode complies with Chinese telecommunications industry standard YD/T 1591-2009
  • Supports Operation as a USB 3.2 x1 Gen1 or USB 2.0 Compound Device
  • Per port or ganged power switching and over-current notification inputs
  • Supports four external downstream ports
  • Supports vendor requests to read and write I2C and EEPROM read at 100k
  • I2C master supports clock stretching
  • OTP ROM, Serial EEPROM, or I2C/SMBus slave interface for custom configurations:
    • VID and PID
    • Port customizations
    • Manufacturer and product strings (not by OTP ROM)
    • Serial number (not by OTP ROM)
  • Application Feature selection using pin selection or EEPROM or I2C/SMBus slave interface
  • Provides 128-bit Universally Unique Identifier (UUID)
  • Single clock input, 24MHz crystal or oscillator
  • Downstream ports configurable to USB2.0 only
  • 64-Pin QFN package (RGC)

Applications

  • Computer systems
  • Docking stations
  • Monitors
  • Set-top boxes

Block Diagram

Block Diagram - Texas Instruments TUSB8042A Four-port USB 3.2x1 Gen1 Hubs
Publicado: 2019-09-30 | Actualizado: 2025-04-10