The TUSB321AI device enables USB Type-C ports with the configuration channel (CC) logic needed for Type-C ecosystems. The TUSB321AI device uses the CC pins to determine port attach and detach, cable orientation, role detection, and port control for Type-C current mode. The TUSB321AI device can be configured as a downstream facing port (DFP), upstream facing port (UFP) or a dual role port (DRP) making it ideal for any application.
The TUSB321AI device when configured as a DRP alternates configuration as a DFP or UFP according to the Type-C Specifications. The CC logic block monitors the CC1 and CC2 pins for pullup or pulldown resistances to determine when a USB port has been attached, the orientation of the cable, and the role detected. The CC logic detects the Type-C current mode as default, medium, or high depending on the role detected. VBUS detection is implemented to determine a successful attach in UFP and DRP modes.
The device operates over a wide supply range and has low-power consumption. The TUSB321AI device is available in industrial and commercial temperature ranges.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TUSB321AI USB Type-C Configuration Channel Logic and Port Control with VCONN datasheet (Rev. A) | PDF | HTML | May 2, 2017 |
| Application note | USB Type-C Configuration Channel (CC) Controller Selection Guide | PDF | HTML | Mar 24, 2026 | |
| White paper | USB Type-C™ represents breakthrough connectivity | Dec 4, 2015 | ||
| White paper | Transition existing products from USB 2.0 OTG to USB Type-C | Jul 10, 2015 | ||
| White paper | Low-cost implementation of USB Type-C | Jul 7, 2015 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| X2QFN (RWB) | 12 | Ultra Librarian |
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