A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the analog and digital sections separate, and use a common ground point for the analog and digital grounds.
Use a reliable communication protocol such as I2C or SPI, and ensure that the clock frequency is within the recommended range. Also, use a pull-up resistor on the SCL/SDA lines and a series resistor on the SDA line to prevent bus contention.
The CY25814SXI can source up to 10mA and sink up to 20mA per GPIO pin. However, the total current drawn from the device should not exceed 100mA.
Use the Power Management Register (PMR) to configure the device for low-power operation. Set the PMR to enable the low-power mode, and adjust the clock frequency and voltage regulator settings accordingly.
Use a low-dropout linear regulator (LDO) with a minimum output voltage of 1.8V and a maximum output voltage of 3.3V. Ensure that the regulator can supply the maximum current required by the device.
CY25814SXI datasheet
by Cypress Semiconductor
