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Emulating data EEPROM for PIC18 and PIC24 MCUs and dsPIC DSCs

Posted: 12 Aug 2008 ?? ?Print Version ?Bookmark and Share

Keywords:application note? EEPROM? flash memory? MCU?

Many applications store non-volatile information in the flash program memory using table write and read operations. Applications that need to frequently update this data may have greater endurance requirements than the specified flash endurance for the device.

The alternate solution of using an external, serial EEPROM device may not be appropriate for cost-sensitive or pin-constrained applications.

This application note presents a third alternative that addresses these issues. This algorithm features an interface similar to an internal data EEPROM, uses available program memory and can improve endurance by a factor as high as 500.

View the PDF document for more information.

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