1 Features

1• 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

3 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.