The LE25FW418A is 512Kx8bit Serial flash memory by 3.0V single power supply operation, and support serial peripheral interface (S.P.I.). There are three kinds of erase functions, Small Sector (4K bytes) erase, Sector (64K bytes) erase and Chip erase. Page program can program the arbitrary data from 1 byte to 256 byte. Program time is high speed, 1.5ms (Typ.). Moreover, The LE25FW418A makes the best use of the feature of the serial flash memory, and is stored in 8pin very small package. The LE25FW418A is best suited for applications that require re-programmable nonvolatile storage of program memory.