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TUSB8020B Two-Port USB 3.0 Hub
SLLSEF6C
July 2014 – June 2017
TUSB8020B
PRODUCTION DATA.
CONTENTS
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TUSB8020B Two-Port USB 3.0 Hub
1
Features
2
Applications
3
Description
4
Revision History
5
Description (continued)
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
3.3-V I/O Electrical Characteristics
7.6
Power-Up Timing Requirements
7.7
Hub Input Supply Current
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Battery Charging Features
8.3.2
USB Power Management
8.3.3
One-Time Programmable (OTP) Configuration
8.3.4
Clock Generation
8.3.4.1
Crystal Requirements
8.3.4.2
Input Clock Requirements
8.3.5
Power-Up and Reset
8.4
Device Functional Modes
8.4.1
External Configuration Interface
8.4.2
I2C EEPROM Operation
8.4.3
SMBus Slave Operation
8.5
Register Maps
8.5.1
Configuration Registers
8.5.1.1
ROM Signature Register (offset = 0h) [reset = 0h]
8.5.1.2
Vendor ID LSB Register (offset = 1h) [reset = 51h]
8.5.1.3
Vendor ID MSB Register (offset = 2h) [reset = 4h]
8.5.1.4
Product ID LSB Register (offset = 3h) [reset = 25h]
8.5.1.5
Product ID MSB Register (offset = 4h) [reset = 80h]
8.5.1.6
Device Configuration Register (offset = 5h) [reset = 1Xh]
8.5.1.7
Battery Charging Support Register (offset = 6h) [reset = 0Xh]
8.5.1.8
Device Removable Configuration Register (offset = 7h) [reset = 0Xh]
8.5.1.9
Port Used Configuration Register (offset = 8h) [reset = 0h]
8.5.1.10
PHY Custom Configuration Register (offset = 9h) [reset = 0h]
8.5.1.11
Device Configuration Register 2 (offset = Ah)
8.5.1.12
UUID Registers (offset = 10h to 1Fh)
8.5.1.13
Language ID LSB Register (offset = 20h)
8.5.1.14
Language ID MSB Register (offset = 21h)
8.5.1.15
Serial Number String Length Register (offset = 22h)
8.5.1.16
Manufacturer String Length Register (offset = 23h)
8.5.1.17
Product String Length Register (offset = 24h)
8.5.1.18
Serial Number Registers (offset = 30h to 4Fh)
8.5.1.19
Manufacturer String Registers (offset = 50h to 8Fh)
8.5.1.20
Product String Registers (offset = 90h to CFh)
8.5.1.21
Additional Feature Configuration Register (offset = F0h)
8.5.1.22
Charging Port Control Register (offset = F2h)
8.5.1.23
Device Status and Command Register (offset = F8h)
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Upstream Port Implementation
9.2.2.2
Downstream Port 1 Implementation
9.2.2.3
Downstream Port 2 Implementation
9.2.2.4
VBUS Power Switch Implementation
9.2.2.5
Clock, Reset, and Miscellaneous
9.2.2.6
Power Implementation
9.2.3
Application Curves
10
Power Supply Recommendations
10.1
Power Supply
10.2
Downstream Port Power
10.3
Ground
11
Layout
11.1
Layout Guidelines
11.1.1
Placement
11.1.2
Package Specific
11.1.3
Differential Pairs
11.2
Layout Example
11.2.1
Upstream Port
11.2.2
Downstream Port
11.2.3
Thermal Pad
12
Device and Documentation Support
12.1
Community Resources
12.2
Trademarks
12.3
Electrostatic Discharge Caution
12.4
Glossary
13
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
PHP|48
MPQF051B
Thermal pad, mechanical data (Package|Pins)
PHP|48
PPTD259B
Orderable Information
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