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Home > Embedded ICs > Embedded - Microcontroller Unit (MCU) > TUSB321AIRWBR
Texas Instruments

TUSB321AIRWBR

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TUSB321AIRWBR Overview

The TUSB321AI device enables USB Type-C ports with the configuration channel (CC) logicneeded for Type-C ecosystems. The TUSB321AI device uses the CC pins to determine port attach anddetach, cable orientation, role detection, and port control for Type-C current mode. The TUSB321AIdevice can be configured as a downstream facing port (DFP), upstream facing port (UFP) or a dualrole port (DRP) making it ideal for any application.

The TUSB321AI device when configured as a DRP alternates configuration as a DFP or UFPaccording to the Type-C Specifications. The CC logic block monitors the CC1 and CC2 pins for pullupor pulldown resistances to determine when a USB port has been attached, the orientation of thecable, and the role detected. The CC logic detects the Type-C current mode as default, medium, orhigh depending on the role detected. VBUS detection is implemented todetermine a successful attach in UFP and DRP modes.

The device operates over a wide supply range and has low-power consumption. The TUSB321AIdevice is available in industrial and commercial temperature ranges.

Features

  • USB Type-C? Specification1.1
  • Backward Compatible with USB Type-C Specification 1.0
  • SupportsUp to 3 A of Current Advertisement through dedicated Current Mode pin
  • ModeConfiguration
    • Host Only – DFP (Source)
    • Device Only – UFP (Sink)
    • Dual Role Port –DRP
  • Channel Configuration (CC)
    • Attach of USB Port Detection
    • Cable Orientation Detection
    • RoleDetection
    • Type-C Current Mode advertisement and detection (Default, Medium,High)
  • VBUSDetection
  • VCONN Support for Active Cables
  • Cable Detectionand Direction Control for External Switches
  • Supply Voltage: 4.5 V to 5.5V
  • Low Current Consumption
  • Industrial Temperature Range of–40 to 85°C

Specifications

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