USB 3.0 Host Controller

USB 2.0

Device

USB 3.0

Device

TUSB8040

USB 3.0

Hub

USB 2.0 Hub

USB 3.0

Device

USB 2.0

Device

USB 2.0 Connection

USB 3.0 Connection

USB 2.0/3.0 Device

USB 3.0 Device

USB 2.0 Device

USB 3.0 System Implementation

USB 1.x Device

USB 2.0

Device

USB 3.0

Device

USB 1.1

Device

USB 1.1

Device

USB 1.x Connection

TUSB8040

SLLSE42F

– SEPTEMBER 2010 – REVISED OCTOBER 2011

www.ti.com

1.2

Introduction

The TUSB8040 is USB 3.0 compliant hub available in an 80-pin QFP or 100-pin QFN package. The QFP

device is designed for operation over the industrial temperature range of

–40°C to 85°C. The QFN device

is designed for operation over the commercial temperature range of 0

°C to 70°C.

The TUSB8040 provides simultaneous SuperSpeed and high-speed/full-speed connections on the

upstream port and provides SuperSpeed, 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 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 and high-speed connectivity are disabled on the

downstream ports.

The TUSB8040 supports up to four downstream ports. It may be configured to report one to four

downstream ports by pin selection or an attached EEPROM or SMBus controller. The configuration

options provide the ability to scale the device by application.

A typical system view of the TUSB8040 is shown in Figure 1-1.

Figure 1-1. Typical Application

6

PRODUCT OVERVIEW

Copyright

© 2010–2011, Texas Instruments Incorporated

Submit Documentation Feedback

Product Folder Link(s): TUSB8040