The recommended operating voltage range for PCA8550DB,118 is 2.3V to 5.5V, with a typical voltage of 3.3V.
To configure the PCA8550DB,118 for I2C-bus mode, connect the SCL pin to a clock signal, and the SDA pin to a bidirectional data line. Ensure the pull-up resistors are connected to the supply voltage (VCC) and the bus capacitance is within the recommended range.
The PCA8550DB,118 supports clock frequencies up to 400 kHz in standard mode and up to 1 MHz in fast mode.
The PCA8550DB,118 can be reset by applying a low signal to the RST pin for a minimum of 1 ms. This resets the device to its default state.
The A0, A1, and A2 address pins are used to set the slave address of the PCA8550DB,118 in I2C-bus mode. These pins allow multiple devices to share the same bus.