Monday, September 26, 2011

3.6 Types of ROM

  • Mask-Programmed ROM - requires manufacturer to load data using photographic negative technique
  • Programmable ROM (PROM) - can be programmed once by the user
  • Erasable Programmable ROM (EPROM) - can be erased and reprogrammed multiple time with UV light
  • Electrically Erasable PROM (EEPROM) - can be erased and reprogrammed multiple time with voltage

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