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Description: This is a breakout board for the PCA9306 dual bidirectional voltage-level translator. Because different parts sometimes use different voltage levels to communicate, voltage level translators can be the key to making different parts play nice.

The PCA9306 is a dual bidirectional I2C-bus and SMBus voltage-level translator that’s operational on the low side from 1.0 V to 3.6 V and on the high side from 1.8 V to 5.5 V. Simply apply your low- and high-side reference voltages to the VREF1 and VREF2 respectively, connect your I/O and drive the Enable pin high to open bidirectional voltage translation without the use of a direction pin!

Documents:

Replaces:BOB-10403

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Customer Comments

  • Will this work correctly on circuits converting to 5v? The datasheet has some nice tables, and in every single case recommend no pullups on the A side.

    I think that, for the majority of cases, you need to remove the pullups on the A side.

  • This part should be on the next version of the Arduino boards.

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