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dektronics / printalyzer-timer

F-Stop enlarging timer and print exposure meter
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Select alternative config EEPROM for the main board #44

Closed dkonigsberg closed 7 months ago

dkonigsberg commented 10 months ago

The current I2C EEPROM being used for this purpose is the ST M24M01-R, which is now marked as "not recommended for new designs." It is a 1Mbit (128kb) part. There does seem to be plenty of vendor stock out there, but for the sake of future-proofing it is probably best to select something else.

This is a fairly standard type of component, so finding a drop-in replacement should hopefully be easy. Either the same capacity, or larger capacity, depending on what is out there.

dkonigsberg commented 10 months ago

The most obvious alternative seems to be the brand-new M24M01E series, which adds additional features and seems to sell for a much lower price.

dkonigsberg commented 8 months ago

Another option is the onsemi CAT24M01, which may be a more direct drop-in replacement.

dkonigsberg commented 7 months ago

Changed EEPROM to CAT24M01, since its the most direct drop-in replacement.