WO1602G Overview
Connect a capacitor between thisterminal and VIN when the built-in booster is used. For voltage booster circuit(VDD-VSS) External capacitor about 0.1u~4.7uf Power supply (+3.0 / 5.0v) GND (In I2C interface DB7 (SDA) is input data. SDA and SCL must connect to I2C bus (I2C bus is to connect a resister between SDA/SCL and the power of I2C bus.