Saturday, March 21, 2009

What is EEPROM?

1.EEPROM (also written E2PROM and pronounced "e-e-prom," "double-e prom" or simply "e-squared") stands for Electrically Erasable Programmable Read-Only Memory and is a type of non-volatile memory used in computers and other electronic devices to store small amounts of data that must be saved when power is removed, e.g., calibration tables or device configuration.

When larger amounts of static data are to be stored (such as in USB flash drives) a specific type of EEPROM such as flash memory is more economical than traditional EEPROM devices.



2.Electrically Erasable Programmable Read-Only Memory (EEPROM): A special nonvolatile memory that can be erased and (re)programmed electrically. Commonly used in contact and contact-less smart cards. Retains the content of its memory even when the power is turned off.


3.Electrical Erasable ROM (EEPROM) It is inconvenient to have to remove a chip to prepare it for programming using a separate light source. EEPROMs allow the erasing of data to be achieved with the ROM in situ. The main difference between EPROMs and EEPROMs is the way that they discharge the charge stored in the floating gate. Fowler-Nordheim tunnelling technique (allowing low energy electrons to jump the gap) this alows the gate to be discharged when required. It is possible to change just individual locations.


4.EEPROM (Electrically Erasable Programmable Read-Only Memory)
A small memory chip that retains data even without power.


5.EEPROM (Electrically Erasable Programmable Read-Only Memory): A non-volatile storage device on microchips. Usually bytes can be erased and reprogrammed individually.
 
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