StrataFlash

StrataFlash is a NOR flash memory technology first developed by Intel.

This is accomplished by storing intermediate voltage levels instead of using only the two levels (discharged = "0" and charged = "1") of traditional binary memories.

The StrataFlash technology evolved out of Intel's ETOX flash memory products.

Research of this technology began in 1992 and the first commercial products were released in 1997.

[1] Further developments allowed faster read speeds by offering synchronous burst mode and asynchronous page mode read operations.