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tusb8044四端口USB 3.1集线器USB
h1654155968.7561
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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 OverCurrent Notification Inputs • Supports Four External Downstream Ports plus internal USB 2.0-Only Ports for USB HID to I 2C Functionality and USB2.0 Billboard • Internal Downstream Port for I 2C 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 I 2C and EEPROM Read at 100 k and 400 k （Default） • I 2C Master Supports Clock Stretching • OTP ROM， Serial EEPROM or I 2C/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 Oscillato
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 highspeed/full-speed connections on the upstream port and provides SuperSpeed USB， high-speed， fullspeed， 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.
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