RTC precision and writable number of NAND Flash 

I want to know 9M 2443 Information.

RTC precision

How long does RTC precision slip off for a month?

writable number of NAND Flash

How many times can I write( or delete )NAND flash ?

thank you.

On the RTC: You can examine the datasheet here:


With that as an example… I’ll let you find the datasheet for the NAND and look that one up too.

Look for items in the datasheet that talk about flash cell “endurance”.