Texas Instruments TUSB8044A Four-Port USB 3.2 x1 Gen1 Hub

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Texas Instruments TUSB8044A Four-Port USB 3.2 x1 Gen1 Hub provides simultaneous SuperSpeed USB and high-speed/full-speed connections on the upstream port. The device also 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 or full-speed/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/low-speed connections, SuperSpeed USB and high-speed connectivity are disabled on the downstream ports.

The TUSB8044A supports per port or ganged power switching and over-current protection, and supports battery charging applications. An individually port power controlled hub switches power on or off to each downstream port as requested by the USB host. Also when an individually port power controlled hub senses an over-current event, only power to the affected downstream port will be switched off. A ganged hub switches on power to all its downstream ports when power is required to be on for any port. The power to the downstream ports is not switched off unless all ports are in a state that allows power to be removed. Also when a ganged hub senses an over-current event, power to all downstream ports will be switched off.

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 a 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
Supports USB billboard 1.21
Per port or ganged power switching and over-current notification inputs

Supports four external downstream ports plus internal USB 2.0-only port for USB HID to I²C functionality and USB2.0 Billboard
Internal downstream port for I²C control through USB HID supports the high-speed, full-speed operation. Its speed matches that of the upstream port
Supports vendor requests to read and write I²C and EEPROM read at 100k and 400k (Default)
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)
Provides 128-Bit Universally Unique Identifier (UUID)
Supports onboard and in-system EEPROM programming Via the USB 2.0 upstream port
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

System Diagram

Chart - Texas Instruments TUSB8044A Four-Port USB 3.2 x1 Gen1 Hub

TI Reference Designs Library

TI Reference Designs - Texas Instruments TUSB8044A Four-Port USB 3.2 x1 Gen1 Hub

TI Reference Designs Library

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New Products in Texas Instruments

Texas Instruments TUSB8044A Four-Port USB 3.2 x1 Gen1 Hub

Features

Applications

System Diagram

TI Reference Designs Library

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New Products in Texas Instruments

Texas Instruments TUSB8044A Four-Port USB 3.2 x1 Gen1 Hub

Features

Applications

Associated Development Tool

Texas Instruments TUSB8044AEVM Evaluation Module

System Diagram

TI Reference Designs Library

QUICK LINKS

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SUPPORT

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