Personal

Computer

USB 3.0

HDD

USB 3.0

Hub

USB 2.0 Connection

USB 3.0 Connection

USB 3.0 Hub

USB 3.0 Device

USB 2.0 Device

USB 1.x Device

USB 1.x Connection

USB 3.0

HDD

USB 2.0

Bluray

USB 2.0

Hub

USB 2.0

Webcam

USB 1.1

Mouse

USB 2.0

HDD

TUSB8020B

Product

Folder

Order

Now

Technical

Documents

Tools &

Software

Support &

Community

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

TUSB8020B

SLLSEF6C – JULY 2014 – REVISED JUNE 2017

TUSB8020B Two-Port USB 3.0 Hub

1

1 Features

1

•

Two-Port USB 3.0 Compliant Hub, USBIF

TID#330000057

•

USB 2.0 Hub Features

–

Multi-Transaction Translator (MTT) Hub: Two

Transaction Translators

–

Four Asynchronous Endpoint Buffers Per

Transaction Translator

•

Supports Battery Charging

–

CDP Mode (Upstream Port Connected)

–

DCP Mode (Upstream Port Unconnected)

–

DCP Mode Complies With Chinese

Telecommunications Industry Standard YD/T

1591-2009

•

Support D+/D– Divider Mode

•

Supports Operation as a USB 3.0 or USB 2.0

Compound Device

•

Per Port or Ganged Power Switching and

Overcurrent Notification Inputs

•

OTP ROM, Serial EEPRO,M 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 Terminal

Selection or EEPROM/ or I2C/SMBus Slave

Interface

•

Provides 128-Bit Universally Unique Identifier

(UUID)

•

Supports On-Board and In-System OTP/EEPROM

Programming Through the USB 2.0 Upstream

Port

•

Single Clock Input, 24-MHz Crystal or Oscillator

•

No Special Driver Requirements; Works

Seamlessly on any Operating System With USB

Stack Support

•

48-Pin HTQFP Package (PHP)

2 Applications

•

Computer Systems

•

Docking Stations

•

Monitors

•

Set-Top Boxes

3 Description

The TUSB8020B is a two-port USB 3.0 compliant

hub. It provides simultaneous SuperSpeed USB and

high-speed/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

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 TUSB8020B supports per port or ganged power

switching and overcurrent protection.

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 overcurrent

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 overcurrent event, power to all

downstream ports will be switched off.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TUSB8020B

HTQFP (48)

7.00 mm × 7.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.