Help on Rotatry encoder to scroll pages and push button to restart arduino...

CrossRoads:
Sure, store your results in a FRAM chip. SRAM speed for Read/writes, EEPROM non-volatility.
FM25040B-G Infineon Technologies | Integrated Circuits (ICs) | DigiKey
Thru hole parts no longer available.

so, there's no way of using other option than this like a i2c module ? then i had to put a 12v 2 amp battery dedicated for it and use a charging circuit! and EEPROM doesn't allow to read digital inputs?