SLLSEE5D
february 2013 – july 2023
TUSB8040A1
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings #GUID-9FC00080-214A-41B8-A47D-B9F7BA87DE22/SLLSE42922
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
3.3-V I/O Electrical Characteristics
6.6
Hub Input Supply Current
6.7
Timing and Switching Characteristics
6.7.1
Clock Generation
6.7.2
Crystal Requirements
6.7.3
Input Clock Requirements
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Memory
7.4
I2C EEPROM Operation
7.5
SMBus Target Operation
7.6
Configuration Registers
7.6.1
ROM Signature Register
7.6.2
Vendor ID LSB Register
7.6.3
Vendor ID MSB Register
7.6.4
Product ID LSB Register
7.6.5
Product ID MSB Register
7.6.6
Device Configuration Register
7.6.7
Battery Charging Support Register
7.6.8
Device Removable Configuration Register
7.6.9
Port Used Configuration Register
7.6.10
Reserved Register
7.6.11
Reserved Register
7.6.12
Language ID LSB Register
7.6.13
Language ID MSB Register
7.6.14
Serial Number String Length Register
7.6.15
Manufacturer String Length Register
7.6.16
Product String Length Register
7.6.17
Reserved Register
7.6.18
Serial Number Registers
7.6.19
Manufacturer String Registers
7.6.20
Product String Registers
7.6.21
Additional Feature Configuration Register
7.6.22
Reserved Register
7.6.23
Reserved Register
7.6.24
Device Status and Command Register
8
Applications, Implementation, and Layout
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Upstream Port Implementation
8.2.2.2
Downstream Port 1 Implementation
8.2.2.3
Downstream Port 2 Implementation
8.2.2.4
Downstream Port 3 Implementation
8.2.2.5
Downstream Port 4 Implementation
8.2.2.6
VBUS Power Switch Implementation
8.2.2.7
Clock, Reset, I2C/SMBUS, and Misc
8.2.2.8
Power Implementation
8.2.3
Application Curve
8.2.4
Power Supply Recommendations
8.2.4.1
Power Up and Reset
8.2.5
Layout
8.2.5.1
Layout Guidelines
8.2.5.1.1
Part Placement
8.2.5.1.2
Board Layout Considerations
8.2.5.1.2.1
RKM Package – QFN (Quad Flat No-Lead)
8.2.5.1.2.2
Impedance
8.2.5.1.2.3
Critical Signals
8.2.5.1.2.4
Crystal
8.2.5.1.2.5
USB Interface
8.2.5.1.2.6
Differential Pair Signals
8.2.5.1.2.6.1
Internal Bond Wire Mismatch
8.2.5.1.2.7
Port Connectors
8.2.5.1.2.8
Reset Terminals
8.2.5.1.2.9
Miscellaneous Terminals
8.2.5.1.2.10
Power Control and Battery Charging Terminals
8.2.5.1.2.11
USB 2.0 Port Indicator LED Terminals
8.2.5.1.3
Power
8.2.5.1.3.1
Power
8.2.5.1.3.2
Downstream Port Power
8.2.5.1.3.3
Ground
8.2.5.2
Layout Example
9
Device and Documentation Support
9.1
Receiving Notification of Documentation Updates
9.2
Support Resources
9.3
Trademarks
9.4
Electrostatic Discharge Caution
9.5
Glossary
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RKM|100
MPQF258B
Thermal pad, mechanical data (Package|Pins)
RKM|100
QFND273C
Orderable Information
sllsee5d_oa
sllsee5d_pm
8.2.5.1
Layout Guidelines