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)
– Device only – UFP (sink)
– Dual role port – DRP
• Channel configuration (CC)
– Attach of USB port detection
– Cable orientation detection
– Role detection
– Type-C current mode (default, medium, high)
• VBUS detection
• I2C or GPIO control
• Role configuration control through I2C
• Supply voltage: 2.7 V to 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 TUSB320 device enables USB Type-C ports
with the configuration channel (CC) logic needed
for Type-C ecosystems. The TUSB320 device uses
the CC pins to determine port attach and detach,
cable orientation, role detection, and port control
for Type-C current mode. The TUSB320 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 TUSB320 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
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 TUSB320 device
is available in industrial and commercial temperature
ranges.