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TUSB8042AI Datenblatt(PDF) 40 Page - Texas Instruments

Teilenummer TUSB8042AI
Bauteilbeschribung  TUSB8042A Four-Port USB 3.2 x1 Gen1 Hub
PDF  64 Pages
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Hersteller  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

TUSB8042AI Datenblatt(HTML) 40 Page - Texas Instruments

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9 Application and Implementation
Note
Information in the following applications sections is not part of the TI component specification,
and TI does not warrant its accuracy or completeness. TI’s customers are responsible for
determining suitability of components for their purposes, as well as validating and testing their design
implementation to confirm system functionality.
9.1 Application Information
The TUSB8042A is a four-port USB 3.2 x1 Gen1-compliant hub. The device provides simultaneous SuperSpeed
USB, high-speed, or full-speed connections on the upstream port. The device also provides SuperSpeed USB,
high-speed, full-speed, or low-speed connections on the downstream port. The TUSB8042A can be used in any
application that requires additional USB-compliant ports. For example, a specific notebook may only have two
downstream USB ports. By using the TUSB8042A, the notebook can increase the downstream port count to five.
9.2 Typical Application
9.2.1 Discrete USB Hub Product
A common application for the TUSB8042A is as a self-powered, standalone USB hub product. The product is
powered by an external 5V DC Power adapter. In this application, using a USB cable TUSB8042A upstream
port is plugged into a USB Host controller. The downstream ports of the TUSB8042A are exposed to users for
connecting USB hard drives, cameras, flash drives, and so forth.
DC
PWR
TUSB8042A
USB
Type B
Connector
USB Type A
Connector
USB
PWR
SWITCH
US Port
DS Port 1
DS Port 2
USB Type A
Connector
USB Type A
Connector
USB Type A
Connector
DS Port 3
DS Port 4
USB
PWR
SWITCH
Figure 9-1. Discrete USB Hub Product
TUSB8042A
SLLSF93A – JUNE 2019 – REVISED JANUARY 2025
www.ti.com
40
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Product Folder Links: TUSB8042A



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