TUSB8020B

SLLSEF6A – JULY 2014 – REVISED JULY 2014

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Table of Contents

8.4

Device Functional Modes........................................ 13

1

Features .................................................................. 1

8.5

Register Maps ......................................................... 14

2

Applications ........................................................... 1

9

Application and Implementation ........................ 26

3

Description ............................................................. 1

9.1

Application Information............................................ 26

4

Revision History..................................................... 2

9.2

Typical Application .................................................. 26

5

Description (continued)......................................... 3

10

Power Supply Recommendations ..................... 31

6

Pin Configuration and Functions ......................... 4

10.1

Power Supply ........................................................ 31

7

Specifications......................................................... 7

10.2

Downstream Port Power ....................................... 31

7.1

Absolute Maximum Ratings ..................................... 7

10.3

Ground .................................................................. 31

7.2

Handling Ratings....................................................... 7

11

Layout................................................................... 32

7.3

Recommended Operating Conditions ....................... 7

11.1

Layout Guidelines ................................................. 32

7.4

Thermal Information .................................................. 7

11.2

Layout Example .................................................... 33

7.5

3.3-V I/O Electrical Characteristics ........................... 8

12

Device and Documentation Support ................. 35

7.6

Power-Up Timing Requirements ............................... 8

12.1

Trademarks ........................................................... 35

7.7

Hub Input Supply Current ......................................... 9

12.2

Electrostatic Discharge Caution ............................ 35

8

Detailed Description ............................................ 10

12.3

Glossary ................................................................ 35

8.1

Overview ................................................................. 10

13

Mechanical, Packaging, and Orderable

8.2

Functional Block Diagram ....................................... 10

Information ........................................................... 35

8.3

Feature Description................................................. 10

4 Revision History

Changes from Original (July 2014) to Revision A

Page

•

Changed device status to production data ............................................................................................................................ 1

2

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