The recommended power-up sequence is to apply VCC before applying the oscillator input signal. This ensures that the internal circuitry is properly initialized.
When the device is not in use, it is recommended to leave the oscillator pins (XIN and XOUT) unconnected or tied to VCC through a 1kΩ resistor to prevent unwanted oscillations.
The maximum frequency deviation allowed for the external oscillator is ±100 ppm.
To ensure that the device is in a valid state after a power failure, it is recommended to use a power-on reset (POR) circuit to reset the device after power-up.
The maximum capacitance allowed on the VCC pin is 10 μF.