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EEPROM is an older, more reliable technology. It is somewhat slower than Flash.
Flash and EEPROM are very similar, but there is a subtle difference. Flash and EEPROM both use quantum cells to trap electons. Each cell represents one bit of data. The presence - or absence - of electons in a cell indicates whether the bit is a 1 or 0.
The cells have a finite life - every time a cell is erased, it wears out a little bit. In EEPROM, cells are erased one-by-one. The only cells erased are those which are 1 but need to be zero. (Writing a 1 to a cell that's 0 causes very little wear, IIRC)
In Flash, a large block is erased all at once. In some devices, this "block" is the entire device. So in Flash, cells are erased whether they need it or not. This cuts down on the lifespan of the device, but is much, much faster than the EEPROM method of going cell-by-cell.
Erasure method: Both Flash and EEPROM erase cells by means of an electric field. I think it is high-frequency and "pops" the electrons out of the cells, but I am not certain.
Other similar devices are EPROM (sometimes UVEPROM) and OTPROM (sometimes PROM). EPROM/UVEPROM lacks the structures that generate the electrical field for erasure. These devices have a window on top, usually covered by a paper sticker. To erase, the sticker is removed and the device is exposed to intense ultraviolet light for 30-45 minutes.
The only difference between OTPROM and UVEPROM is that OTPROM lacks the UV window - there is no way to erase the data. Adding the UV window to the device package significantly increases cost, so there is a niche for one-time-programmable devices.
What else can I help you with?
What type of memory uses a flash memory?
AnswerFlash Memmory is a special type of EEPROM (Eletrically Eraseable Programmable Read Only Memory)The difference between flash memory and EEPROM is that flash memory is block eraseable and EEPROM is byte-erasable.
What kind of data storage do Flash memory cards use?
AnswerFlash Memmory is a special type of EEPROM (Eletrically Eraseable Programmable Read Only Memory)The difference between flash memory and EEPROM is that flash memory is block eraseable and EEPROM is byte-erasable.
What is EEPROM used for?
EEPROM is used in computers and other electronic devices to store small amounts of data when power is removed. EEPROM is also similar to flash memory however, the difference is that EEPROM requires data to be written or erased one byte at a time whereas flash memory allows data to be written or erased in blocks. This makes flash memory faster. EEPROM is used in computers and other electronic devices to store small amounts of data that must be saved when power is removed. EEPROMs are realized as arrays of floating-gate transistors.
EEPROM is also known as memory?
Flash Memory
What type of memory is Prom EEProm and flash memory?
RAM
How does a flashdrive work?
Flash drives and other forms of flash storage use a special form of PROM called EEPROM. By applying an electric charge to it, data can be written to EEPROM chips.
What is the full form of EEEPROM?
EEEPROM: Emulated EEPROM This is flash memory with a SW layer to give it EEPROM features such as high number of write cycles, auto-erase, single byte writes, etc.
Is flash memory a RAM or ROM?
we can say its a kind of ROM... since flash memory is a specialised EEPROM...
What is the difference between a USB Flash drive and a pen drive?
There is no difference. Flash drive, pen drive, and thumb drive are all interchangeable terms.
What is the flash point difference between diesel and gasoline?
The flash point difference between diesel and gasoline is that diesel has a higher flash point than gasoline. Diesel typically has a flash point of around 125-180 degrees Celsius, while gasoline has a flash point of around -40 to -60 degrees Celsius.
What is the difference between a flash drive and hard drive?
lol really
What is the difference between flash ram and flash rom?
Flash RAM is used for temporary data, such as in a USB drive. Flash ROM is used for bios and system files.
