The Rise to Dominance of NAND Flash

By Bill Graham

Graham_lg Flash memory is the dominant form of non-volatile memory for
embedded systems and has been since the EEPROM days. I remember using
an ultraviolet lamp to erase the old EPROMs, those were the days. You
could erase your EPROM and permanently damage your eyesight at the same
time!

NOR flash, traditionally dominant in embedded systems, has
provided as a relatively small amount of non-volatile memory for
booting the device and retaining critical parameters during power-off.
NOR flash was a good choice because it supports execute-in-place which
removes the need to copy the entire image from flash to RAM to execute.

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