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Electrically Eraseable Programmable Read Only Memory

Avoiding EEPROM corruption

Serial EEPROM Solutions vs. Parallel Solutions - The cost break even point for serial I2C non-volitile memory from useing multiple 32kx8 EEPROMs to using parallel flash memory with an I2C controller is at about 128k as of late 1999.

Ian Chapman <> says:

BTW, I've just spotted an interesting point in AN709 about I2C EEPROMs which can power up in an incorrect state. The following initialisation sequence after power-up is recommended to resolve this:

I haven't seen this in any examples of I2C master code before, but AN709 gives a good explanation of why it is needed to avoid the possibility of an erroneous write to the EEPROM.

Extending lifetime and reliability in EEPROMs


See also:



For another example of reading the EEPROM, see PIC 16F876 full initialization sample program /techref/microchip/16f877/snipp.htm .


file: /Techref/mem/eeproms.htm, 9KB, , updated: 2013/7/22 17:09, local time: 2024/7/24 11:10,

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