Difference Between EPROM and EEPROM

ComputersData StorageHardware

In this post, we will understand the difference between EPROM and EEPROM

EPROM (Erasable and Programmable Read Only Memory)

  • UV (ultra violet) rays are used to erase the content in EPROM.

  • It includes a rock crystal window at the top of it.

  • The relative cell size in an EPROM is 1.

  • EPROM is considered as the modern version of PROM.

  • EPROM is an external programming technique.

  • Once erased, EPROM memory can’t be reprogrammed.

  • The transistor used with EPROM consumes 12.5 volts.

  • The hot electron injection programming technique is used with EPROM.

  • The operation of erasing consumes 15 to 20 minutes in EPROM.

  • To erase and reprogram the system’s BIOS, EPROM chip has to be switched off from the circuit.

EEPROM (Electrically Erasable and Programmable Read Only Memory)

  • An electric signal is used to erase the contents of EEPROM.

  • The area in an EEPROM is completely sheathed in an opaque plastic case.

  • The relative cell size in an EEPROM is 3.

  • EEPROM is considered as the modern version of EPROM.

  • EEPROM is an external programming technique.

  • EEPROM can be reprogrammed after erasing (like EPROM).

  • The transistor used with EEPROM consumes 5 volts.

  • The tunnel effect is used as programming technique in EEPROM.

  • Erasing contents of EEPROM consumes 5 milliseconds.

  • The operation of erasing and reprogramming can be done without switching off the electrical circuit of the system.

raja
Published on 19-Apr-2021 06:02:16
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