EEPROM
An EEPROM (also called an E2PROM) or Electrically Erasable Programmable Read-Only Memory, is a
non-volatile storage chip used in computers and other devices to store small amounts of volatile (configuration) data. When larger amounts of more static data are to be stored (such as in
USB flash drives) other memory types like
flash memory are more economical.
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Electrically Erasable Programmable Read-Only Memory
<
storage> (EEPROM) A
non-volatile storage device using a technique similar to the floating gates in
EPROMs but with the capability to discharge the floating gate electrically. Usually bytes or words can be erased and reprogrammed individually during system operation.
In contrast to
RAM, writing takes much longer than reading and EEPROM is more expensive and less dense than RAM. It is appropriate for storing small amounts of data which is changed infrequently, e.g. the hardware configuration of an
Acorn Archimedes.
[Difference from
EAPROM?]
(1995-04-22)
(c) Copyright 1993 by Denis Howe