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Contents

README

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PCA9306DCUR

Texas Instruments · Translators / Level Shifters · VSSOP-8

PCA9306DCUR from Texas Instruments, in a VSSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground reference, 0 V.
2 VREF1 power_in Low-voltage-side reference supply voltage for SCL1 and SDA1. Operating range 1.2 V to 3.3 V (absolute max 7 V).
3 SCL1 bidirectional Serial clock, low-voltage side. Open-drain I2C clock line referenced to VREF1. Requires external pull-up resistor to VREF1.
4 SDA1 bidirectional Serial data, low-voltage side. Open-drain I2C data line referenced to VREF1. Requires external pull-up resistor.
5 SDA2 bidirectional Serial data, high-voltage side. Open-drain I2C data line referenced to VREF2 side supply. Requires external pull-up resistor.
6 SCL2 bidirectional Serial clock, high-voltage side. Open-drain I2C clock line referenced to VREF2 side supply. Requires external pull-up resistor.
7 VREF2 power_in High-voltage-side reference supply voltage for SCL2 and SDA2. Operating range 1.8 V to 5.5 V (absolute max 7 V).
8 EN input Switch enable input. EN high enables the translator (SCL1=SCL2, SDA1=SDA2); EN low disconnects the switches, placing SCL/SDA in high-impedance state. Operating range 0 to 5 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VSSOP-8
Category Logic
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • PCA9306DCUR
  • PCA9306DCURDCUT
  • PCA9306DCURDCTR
  • PCA9306DCURDCTT
  • PCA9306DCURDQER
  • PCA9306DCURYZTR

CAD (KiCad official)

  • Symbol: PCA9306DCUR
  • Footprint: Package_SO:VSSOP-8_2.3x2mm_P0.5mm
  • 3D model: VSSOP-8 (KiCad packages3D, STEP)
  • 3D model files: pca9306dcur-etched.step / pca9306dcur-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pca9306dcur.step / pca9306dcur.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (22 pp, sha256 ca7a67f9c82d010b, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF