Introduction
●The TUSB8040 is USB 3.0 compliant hub available in an 80-pin QFP package. The device is designed for operation over the commercial temperature range of 0°C to 70°C.
●Features
●• USB 3.0 Compliant Four Port Hub, TID# 330000003
● – Upstream Port Supports SuperSpeed, High-Speed and Full-Speed Connections
● – Each of the Four Downstream Ports Support SuperSpeed, High-Speed, Full-Speed/Low-Speed Connections
●• USB 2.0 Hub Features
● – Multi Transaction Translator (MTT) Hub: Four Transaction Translators, One Per Port
● – Four (Over USB Required Minimum of Two) Asynchronous Endpoint Buffers Per Transaction Translator for Better Throughput
●• Supports Charging Downstream Port (CDP) Applications
● – Battery Charging 1.2 Compliant
●• Supports Operation as a USB 3.0 or USB 2.0 Compound Device
●• Supports Per Port or Ganged Power Switching and Over-Current Protection
●• Provides the following status outputs:
● – High-Speed Upstream Connection
● – High-Speed Upstream Port Suspended
● – SuperSpeed Upstream Connection
● – SuperSpeed Upstream Port Suspended
●• Optional Serial EEPROM or SMBus Slave Interface for Custom Configurations:
● – VID/PID
● – Manufacturer and Product Strings
● – Serial Number
●• Using Pin Selection or the EEPROM/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
