Gen1 Hub. TUSB8044 Datasheet

TUSB8044 Hub. Datasheet pdf. Equivalent

TUSB8044 Datasheet
Recommendation TUSB8044 Datasheet
Part TUSB8044
Description Four-Port USB 3.1 Gen1 Hub
Feature TUSB8044; Product Folder Order Now Technical Documents Tools & Software Support & Community TUSB8044 SLLS.
Manufacture etcTI
Datasheet
Download TUSB8044 Datasheet





Texas Instruments TUSB8044
Product
Folder
Order
Now
Technical
Documents
Tools &
Software
Support &
Community
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.



Texas Instruments 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



Texas Instruments TUSB8044
www.ti.com
TUSB8044
SLLSEW5 – APRIL 2017
5 Description (Continued)
When the upstream port is connected to an electrical environment that only supports full-speed/low-speed
connections, SuperSpeed USB and high-speed connectivity are disabled on the downstream ports.
The TUSB8044 supports per port or ganged power switching and over-current protection, and supports battery
charging applications.
An individually port power controlled hub switches power on or off to each downstream port as requested by the
USB host. Also when an individually port power controlled hub senses an over-current event, only power to the
affected downstream port will be switched off.
A ganged hub switches on power to all its downstream ports when power is required to be on for any port. The
power to the downstream ports is not switched off unless all ports are in a state that allows power to be removed.
Also when a ganged hub senses an over-current event, power to all downstream ports will be switched off.
The TUSB8044 downstream ports provide support for battery charging applications by providing Battery
Charging Downstream Port (CDP) handshaking support. It also supports a Dedicated Charging Port (DCP) mode
when the upstream port is not connected. The DCP mode supports USB devices which support with the USB
Battery Charging, Galaxy Charging, and Chinese Telecommunications Industry Standard YD/T 1591-2009. In
addition, an automatic mode provides transparent support for BC devices and devices supporting Divider Mode
charging solutions when the upstream port unconnected. In addition when upstream port is unconnected, the
TUSB8044 supports the divider charging port modes (ACPx modes) and an automatic transition through all
modes, starting with ACP3 and ending in DCP.
Integrated in the TUSB8044 is a USB2.0 Billboard device which complies to the "USB Device Class Definition for
Billboard Devices Version 1.1" specification. The billboard device is attached to the highest number downstream
port of the TUSB8044 USB 2.0 hub. The purpose of the billboard is to communicate Alternate Mode status to the
host system. The TUSB8044 supports only one Alternate mode.
The TUSB8044 provides pin strap configuration for some features including battery charging support, and also
provides customization though OTP ROM, I2C EEPROM, or via an I2C/SMBus slave interface for PID, VID, and
custom port and phy configurations. Custom string support is also available when using an I2C EEPROM or the
I2C/SMBus slave interface.
The TUSB8044 supports programming of an attached EEPROM through its internal USB HID to I2C interface.
The device is available in a 64-pin RGC package and is offered in a commercial version for operation over the
temperature range of 0°C to 70°C.
Copyright © 2017, Texas Instruments Incorporated
Product Folder Links: TUSB8044
Submit Documentation Feedback
3





@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)