Hi i am using 8563t rtc with rechargeable battery. Now i want to move 3V CR2032 coin cell battery,what will be the operating hours?
Yes,you can use coin cell battery backup PCF8563T.
i need a circuit diagram for 8563T should work main power and it should work battery backup(coin cell 3V CR2032) when main power is not available.
Please download UM10301 as below link and refer to page31 figure12.
i have seen pdf and How to select Diodes (D1,D2) and R1 resistor value? while i am using primary lithium cell for backup circuit.
i have 3.0V CR2032 lithium cell. In my circuit Vsup = 5.0 V, How to choose D1,D2 and R1 for proper working. waiting for your reply. Thanks
For the D1/R1 you can find the related calculation method also in UM10301 page33/35.
I replaced rechargeable battery by coin cell battery (3.3V CR2032 lithium cell) then Date & Time is running. But every day 2 or 3 secs delayed. It is continuously POWER ON condition for one week. So totally 18 seconds delayed for a week. How to solve this Problem?
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