Datasheet

TUSB8040A
www.ti.com SLLSEA7F –MAY 2012–REVISED SEPTEMBER 2013
Four-Port USB 3.0 Hub
Check for Samples: TUSB8040A
1 PRODUCT OVERVIEW
1.1 Features
1
• USB 3.0 Compliant Hub, TID# 330000037
– Upstream Port Supports SuperSpeed USB, High-Speed and Full-Speed Connections
– Supports Four Downstream Ports
– Each of the Four Downstream Ports Support SuperSpeed USB, High-Speed, Full-Speed or
Low-Speed Connections
• USB 2.0 Hub Features
– Multi Transaction Translator (MTT) Hub: Four Transaction Translators, One Per Port
– Four Asynchronous Endpoint Buffers Per Transaction Translator (TT) for Better Throughput Than
the USB Required Minimum of Two Buffers Per TT
• Supports Battery Charging Applications
– Battery Charging 1.2 Compliant Charging Downstream Port (CDP) when Upstream Port is
Connected
– Battery Charging 1.2 and Chinese Telecommunications Industry Standard YD/T 1591-2009
Compliant Dedicated Charging Port (DCP) when Upstream Port is Disconnected
• Supports Operation as a USB 3.0 or USB 2.0 Compound Device
• Supports Per Port or Ganged Power Switching and Over-Current Notification Inputs
• Provides the following status outputs:
– High-Speed Upstream Connection
– High-Speed Upstream Port Suspended
– SuperSpeed USB Upstream Connection
– SuperSpeed USB Upstream Port Suspended
• Optional Serial EEPROM or SMBus Slave Interface for Custom Configurations:
– VID or PID
– Manufacturer and Product Strings
– Serial Number
• Using Pin Selection or EEPROM and SMBus Slave Interface, Each Downstream Port Can Be
Independently:
– Enabled or Disabled
– Marked as Removable or Permanently Attached (for Compound Applications)
– Have Battery Charging Enabled or Disabled
• Provides 128-Bit Universally Unique Identifier (UUID)
• Optionally Supports USB 2.0 Compliant Port Indicator LEDs
• Configurable SMBus Address to Support Multiple Devices on the Same SMBus Segment
• Supports On-Board and In-System EEPROM Programming Via the USB 2.0 Upstream Port
• Single Clock Input, 24-MHz Crystal or Oscillator
• No Special Driver Requirements; Works Seamlessly With Any Operating System With USB Stack
Support
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PRODUCTION DATA information is current as of publication date. Products conform to
Copyright © 2012–2013, Texas Instruments Incorporated
specifications per the terms of the Texas Instruments standard warranty. Production
processing does not necessarily include testing of all parameters.