What is an EEPROM?
EEPROM stands for Electrically Erasable Programmable Read-Only Memory. An EEPROM is like an EPROM chip since it can be written in or programmed more than once. Unlike the EPROM chip, however, an EEPROM chip need not be taken out of the computer or electronic device of which it is part when a new program or data needs to be written on it.
-It’s erased by shining high intensity UV light throught he Quartz Window at the top. There are non-ceramic variations made of plastic with no window on them as well, usually with ‘P’ as part of the part number (for plastic). Because they have no window to erase them (obviously they can only be programmed once). Part numbers for EPROMs are usually 27xxx where the number XXX when divided by 8 then multiplied by 1000 gives you the capacity of the device. 2764 for example holds 8k of data. 25xxx is also common in Atari 2600 protos and old arcade games. *Will EEPROMS last forever? (back to top) – 10-15 years half-life is probably a safe estimate for EEPROMs, but in reality they can last much longer than that (just like batteries in some game carts). *Is there a way to prevent “blinking” on the NES? Other systems? (back to top) -There are a few common steps you can take. The easiest solution is to get a top-loading NES. They are extremely reliable, having a redesigned pin system, however, t
