ZHCSJK2O October 2004 – September 2023 PCA9306
PRODUCTION DATA
The primary feature of the PCA9306 device is translating voltage from an I2C bus referenced to VREF1 up to an I2C bus referenced to VDPU, to which VREF2 is connected through a 200-kΩ pullup resistor. Translation on a standard, open-drain I2C bus is achieved by simply connecting pullup resistors from SCL1 and SDA1 to VREF1 and connecting pullup resistors from SCL2 and SDA2 to VDPU. Information on sizing the pullup resistors can be found in the Sizing Pullup Resistors section.