TUSB8044 Hub Datasheet

TUSB8044 Datasheet, PDF, Equivalent


Part Number

TUSB8044

Description

Four-Port USB 3.1 Gen1 Hub

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download TUSB8044 Datasheet


TUSB8044
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TUSB8044
SLLSEW5 – APRIL 2017
TUSB8044 Four-Port USB 3.1 Gen1 Hub with USB Billboard
1 Features
1 Four Port USB 3.1 Gen1 Hub
• USB 2.0 Hub Features
– Multi Transaction Translator (MTT) Hub: Four
Transaction Translators
– Two Asynchronous Endpoint Buffers Per
Transaction Translator
• Supports Battery Charging:
– Supports D+/D- Divider Charging Port (ACP1,
ACP2, and ACP3) when the Upstream Port is
Unconnected or not Configured
– Supports Automatic Mode for Transition
Between DCP or ACP Modes When the
Upstream Port is Unconnected
– Supports Galaxy Charging
– CDP Mode (Upstream Port Connected)
– DCP Mode (Upstream Port Unconnected)
– DCP Mode Complies with Chinese
Telecommunications Industry Standard YD/T
1591-2009
• Supports Operation as a USB 3.1 Gen1 or USB
2.0 Compound Device
• Supports USB Billboard
• Per Port or Ganged Power Switching and Over-
Current Notification Inputs
• Supports Four External Downstream Ports plus
internal USB 2.0-Only Ports for USB HID to I2C
Functionality and USB2.0 Billboard
• Internal Downstream Port for I2C Control Through
USB HID Supports High-Speed, Full-Speed
Operation. Its Speed Matches That of the
Upstream Port.
• Supports Vendor Requests to Read and Write I2C
and EEPROM Read at 100 k and 400 k (Default)
• I2C Master Supports Clock Stretching
• OTP ROM, Serial EEPROM 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)
• Provides 128-Bit Universally Unique Identifier
(UUID)
• Supports On-Board and In-System EEPROM
Programming Via the USB 2.0 Upstream Port
• Single Clock Input, 24-MHz Crystal or Oscillator
1
• Downstream Ports Configurable to USB2.0 Only
• 64-Pin QFN Package (RGC)
2 Applications
Computer Systems, Docking Stations, Monitors,
Set-Top Boxes
3 Description
The TUSB8044 is a four-port USB 3.1 Gen1 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.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TUSB8044
VQFN (64)
9.00 mm × 9.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Diagram
USB 3.1 System Implementation
USB 3.x Host Controller
USB 2.0
Device
USB 2.0
Billboard
TUSB8044
USB 2.0
HID to I2C
USB 3.x
Device
USB 3.x Hub
USB 2.0
Device
USB 2.0 Hub
USB 1.1
Device
USB 3.x
Device
USB 2.0
Device
USB 3.x
Device
USB 1.1
Device
USB 1.x Connection
USB 2.0 Connection
USB 3.x Connection
USB 2.0/3.x Device
USB 3.x Device
USB 2.0 Device
USB 1.x Device
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.

TUSB8044
TUSB8044
SLLSEW5 – APRIL 2017
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Description (Continued) ........................................ 3
6 Pin Configuration and Functions ......................... 4
7 Specifications......................................................... 9
7.1 Absolute Maximum Ratings ..................................... 9
7.2 ESD Ratings.............................................................. 9
7.3 Recommended Operating Conditions....................... 9
7.4 Thermal Information .................................................. 9
7.5 Electrical Characteristics, 3.3-V I/O ........................ 10
7.6 Timing Requirements, Power-Up............................ 10
7.7 Hub Input Supply Current ....................................... 11
8 Detailed Description ............................................ 12
8.1 Overview ................................................................. 12
8.2 Functional Block Diagram ....................................... 12
8.3 Feature Description................................................. 13
8.4 Device Functional Modes........................................ 21
8.5 Register Maps ......................................................... 25
9 Applications and Implementation ...................... 43
9.1 Application Information............................................ 43
9.2 Typical Application .................................................. 43
10 Power Supply Recommendations ..................... 52
10.1 TUSB8044 Power Supply ..................................... 52
10.2 Downstream Port Power ....................................... 52
10.3 Ground .................................................................. 52
11 Layout................................................................... 53
11.1 Layout Guidelines ................................................. 53
11.2 Layout Examples................................................... 54
12 Device and Documentation Support ................. 56
12.1 Receiving Notification of Documentation Updates 56
12.2 Community Resources.......................................... 56
12.3 Trademarks ........................................................... 56
12.4 Electrostatic Discharge Caution ............................ 56
12.5 Glossary ................................................................ 56
13 Mechanical, Packaging, and Orderable
Information ........................................................... 56
4 Revision History
DATE
April 2017
REVISION
*
NOTES
Preliminary release.
2 Submit Documentation Feedback
Product Folder Links: TUSB8044
Copyright © 2017, Texas Instruments Incorporated


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity TUSB8044 SLLSEW5 – APRIL 2017 TUSB8044 Four-Port USB 3.1 Gen1 Hub wi th USB Billboard 1 Features •1 Four Port USB 3.1 Gen1 Hub • USB 2.0 Hub F eatures – Multi Transaction Translato r (MTT) Hub: Four Transaction Translato rs – Two Asynchronous Endpoint Buffer s Per Transaction Translator • Suppor ts Battery Charging: – Supports D+/D- Divider Charging Port (ACP1, ACP2, and ACP3) when the Upstream Port is Unconn ected or not Configured – Supports Au tomatic Mode for Transition Between DCP or ACP Modes When the Upstream Port is Unconnected – Supports Galaxy Chargi ng – CDP Mode (Upstream Port Connecte d) – DCP Mode (Upstream Port Unconnec ted) – DCP Mode Complies with Chinese Telecommunications Industry Standard Y D/T 1591-2009 • Supports Operation as a USB 3.1 Gen1 or USB 2.0 Compound Dev ice • Supports USB Billboard • Per Port or Ganged Power Switching and OverCurrent Notification Inputs • Supports Four External D.
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