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TUSB321RWBR

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Texas Instruments Specialized, X2-QFN-12(1.6x1.6). KiCad symbol, footprint and 3D as used on Adom boards; pin functions from the manufacturer datasheet.

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TUSB321RWBR

Texas Instruments · Specialized · X2-QFN-12(1.6x1.6)

TUSB321RWBR from Texas Instruments, in a X2-QFN-12(1.6x1.6). Symbol, footprint and 3D model are the ones used on Adom board designs (3D model: KiCad library 3D model Texas_X2QFN-12_1.6x1.6mm_P0.4mm (built with the KiCad generator) (CC-BY-SA 4.0 with the KiCad library exception)). Pin functions are extracted from the manufacturer datasheet with page references.

Pinout

Pin Name Type Function
1 CC1 bidirectional Type-C configuration channel signal 1. [datasheet p.3]
2 CC2 bidirectional Type-C configuration channel signal 2. [datasheet p.3]
3 CURRENT_MODE input Advertise VBUS current. This 3-level input controls current advertisement in DFP mode or DRP mode connected as source. L: default current, pull-down to GND or leave unconnected. M: medium (1.5A) current, pull-up to VDD with a 500-kΩ resistor. H: high (3.0A) current, pull-up to VDD with a 10-kΩ resistor. [datasheet p.3]
4 PORT input Tri-level input pin to indicate port mode; its state is sampled when VDD is active. H: DFP (pull-up to VDD). NC: DRP (leave unconnected). L: UFP (pull-down or tie to GND). [datasheet p.3]
5 VBUS_DET input 5- to 28-V VBUS input voltage. VBUS detection determines UFP attachment. One RVBUS external resistor is required between system VBUS and the VBUS_DET pin. [datasheet p.3]
6 ~{VCONN_FAULT} open_collector Open-drain output, asserted low for tFAULT when a VCONN over-current fault is detected. [datasheet p.3]
7 OUT1 open_collector Open-drain output communicating Type-C current mode detect when the device is in UFP mode: default current mode detected (H); medium or high current mode detected (L). [datasheet p.3]
8 OUT2 open_collector Open-drain output communicating Type-C current mode detect when the device is in UFP mode: default or medium current mode detected (H); high current mode detected (L). [datasheet p.3]
9 ID open_collector Open-drain output; asserted low when the CC pins detect device attachment when the port is a source (DFP), or dual-role (DRP) acting as source (DFP). [datasheet p.3]
10 GND power_in Ground. [datasheet p.3]
11 DIR open_collector Plug direction. This open-drain output indicates the detected plug orientation: Type-C plug position 2 (H); Type-C plug position 1 (L). [datasheet p.3]
12 VDD power_in Positive supply voltage. [datasheet p.3]

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package X2-QFN-12(1.6x1.6)
Category Interface
Pins 12
LCSC C139392
Mouser 595-TUSB321RWBR
DigiKey 296-42400-2-ND
Distributor summary (LCSC listing, not datasheet) -40℃+85℃ 100uA 100uA 4.5V5.5V Transceiver X2-QFN-12(1.6x1.6) USB Converters ROHS

CAD

  • Symbol: tusb321rwbr (source library Interface_USB:TUSB321)
  • Footprint: Package_DFN_QFN:Texas_X2QFN-12_1.6x1.6mm_P0.4mm
  • 3D model path in footprint: ${KIPRJMOD}/tusb321rwbr.step
  • 3D files: tusb321rwbr-etched.step / tusb321rwbr-etched.glb carry the MPN etch as a separate Adom.LaserEtch part; tusb321rwbr.step / tusb321rwbr.glb are the bare model.
  • EAGLE/Fusion library: tusb321rwbr.lbr (adom-lbr)

Provenance

  • Datasheet: Texas Instruments TUSB321 datasheet (SLLSEO6C, revised August 2018, sha256 ef1cea96d1e85a98, retrieved 2026-10-27, tier: mfr)
  • CAD: Footprint and symbol as used on Adom board designs; 3D model: KiCad library 3D model Texas_X2QFN-12_1.6x1.6mm_P0.4mm (built with the KiCad generator) (CC-BY-SA 4.0 with the KiCad library exception).
  • Pins: KiCad symbol from the source board + adom-ds2sf datasheet extraction (claude-opus-4-7).

Datasheet PDF