EEPROM

EEPROM chip

EEPROM (also E²PROM) stands for electrically erasable programmable read-only memory and is a type of non-volatile memory used in computers, integrated in smart cards and remote keyless systems. It is a Read Only Memory (ROM) whose data can be erased and reprogrammed by higher than normal currents of electricity.

EEPROM Media

A cross section of legacy EPROM structure.Upper insulator: ONOLower insulator: tunnel oxide
Charging mechanism of today's NOR-type FLASH memory cell. Å = 10^-10 m.
Discharging mechanism of today's NOR-type FLASH memory cell
Inside of a SIM card

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