We are using PCF85063A modularly. The problem we are facing is - the OS bit becomes high even for the slightest dip in supply. Please suggest some solution to fix it.
For your schematic:
1:Selectable integrated oscillator load
capacitors for CL = 7 pF or CL = 12.5 pF,you can use them instead your 10pF.
2: what do you mean slightest dip in supply? You use the battery do you monitor this voltage of battery? Can you catch the VBAT/INT/ CLKOUT when issue happened?