1 Features
• USB Type-C™ Specification 1.1
• Backward Compatible with USB Type-C
Specification 1.0
• Supports Up to 3 A of Current Advertisement and
Detection
• Mode Configuration
– Host Only – DFP/Source (I2C Mode only)
– Device Only – UFP/Sink (I2C Mode only)
– Dual Role Port – DRP
• Channel Configuration (CC)
– Attach of USB Port Detection
– Cable Orientation Detection
– Role Detection
– Type-C Current Mode (Default, Medium, High)
+u
• VBUS Detection
• I2C or GPIO Control
• VCONN Support for Active Cables
• Cable Detection and Direction Control
for External Switches
• Role Configuration Control through I2C
• Supply Voltage: 4.5 V to 5.5 V
• Low Current Consumption
• Industrial Temperature Range of –40 to 85°C

2 Applications
• Host, Device, Dual Role Port Applications
• Mobile Phones
• Tablets and Notebooks
• USB Peripherals

Description
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 detected.
The device operates over a wide supply range and
has low-power consumption. The TUSB322I device is
available in industrial temperature ranges.