The TUSB322I device enables USB Type-C ports with the configuration channel (CC) logic
required for Type-C ecosystems. The TUSB322I device uses the CC pins to determine port attach and
detach, cable orientation, role detection, and port control for Type-C current mode. The TUSB322I
device can be configured as a downstream facing port (DFP), upstream facing port (UFP), or a dual
role port (DRP), making the TUSB322I device ideal for any application.
The TUSB322I device 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 TUSB322I will supply VCONN when an active cable is
The device operates over a wide supply range and has low-power consumption. The TUSB322I
device is available in industrial temperature ranges.
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