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TUSB321AIRWBR Datasheet(PDF) 7 Page - Texas Instruments |
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TUSB321AIRWBR Datasheet(HTML) 7 Page - Texas Instruments |
7 / 21 page TUSB321AI TUSB321AI 5.1 k 10% W + 56 k % W +5 900 k 1% W + TUSB321AI www.ti.com SLLSER2 – OCTOBER 2015 7 Detailed Description 7.1 Overview The USB Type-C ecosystem operates around a small form factor connector and cable that is flippable and reversible. Because of the nature of the connector, a scheme is needed to determine the connector orientation. Additional schemes are needed to determine when a USB port is attached and the acting role of the USB port (DFP, UFP, DRP), as well as to communicate Type-C current capabilities. These schemes are implemented over the CC pins according to the USB Type-C specifications. The TUSB321AI device provides Configuration Channel (CC) logic for determining USB port attach and detach, role detection, cable orientation, and Type-C current mode. The TUSB321AI device also contains several features such as VCONN sourcing, USB3.1 MUX direction control, mode configuration and low standby current which make this device ideal for source or sinks in USB2.0 or USB3.1 applications. 7.1.1 Cables, Adapters, and Direct Connect Devices Type-C Specification 1.1 defines several cables, plugs and receptacles to be used to attach ports. The TUSB321AI device supports all cables, receptacles, and plugs. The TUSB321AI device does not support e- marking. 7.1.1.1 USB Type-C Receptacles and Plugs Below is list of Type-C receptacles and plugs supported by the TUSB321AI device: • USB Type-C receptacle for USB2.0 and USB3.1 and full-featured platforms and devices • USB full-featured Type-C plug • USB2.0 Type-C plug 7.1.1.2 USB Type-C Cables Below is a list of Type-C cables types supported by the TUSB321AI device: • USB full-featured Type-C cable with USB3.1 full-featured plug • USB2.0 Type-C cable with USB2.0 plug • Captive cable with either a USB full-featured plug or USB2.0 plug 7.1.1.3 Legacy Cables and Adapters The TUSB321AI device supports legacy cable adapters as defined by the Type-C Specification. The cable adapter must correspond to the mode configuration of the TUSB321AI device. Figure 2. Legacy Adapter Implementation Circuit 7.1.1.4 Direct Connect Devices The TUSB321AI device supports the attaching and detaching of a direct-connect device. Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: TUSB321AI |
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