Is there any reason why people are still using (and implementing in new systems) normal EEPROMs instead of flash memory, nowadays?
From the Flash memory wikipedia:
Flash memory was developed from EEPROM (electrically erasable programmable read-only memory).
Would there be any disadvantages (power consumption, space, speed, etc.) on using flash instead of normal EEPROM?
Answer
To be pedantic, FLASH memory is merely a form of EEPROM: There is a marketing / branding aspect here. Typically, the distinction used today is that EEPROMS are single-byte (or storage word) erasable / rewritable, while FLASH is block-based for erase/write operations.
Relevant to the question:
- EEPROMs continue to be popular due to maximum erase/write cycle ratings being an order of magnitude or two better than FLASH
- Due to investments in design typically having been amortized over time, as with any mature technology, the cost of production and testing reduces compared to a newer technology.
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