The TUSB8040A is a four-port USB 3.0 compliant hub and is available in a 100-pin QFN package. The device is designed for operation over the commercial temperature range of 0°C to 70°C.
Features
• 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)
