Overview
The LE25FW418A is 512K×8bit 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.

Features
• Read/write operations enabled by single 3.0V power supply: 2.7 to 3.6V supply voltage range
• Operating frequency : 50MHz
• Temperature range : 0 to +70°C,-40 to 85°C(Planning)
• Serial interface : SPI mode 0, mode 3 supported
• Sector size : 4K bytes/small sector, 64K bytes/sector
• Small sector erase, sector erase, chip erase functions
• Page program function (256 bytes/page)
• High-Density read mode (HD_READ)
• Block protect function
• Highly reliable read/write
   Number of rewrite times : 100,000 times
   Small sector erase time : 25ms (typ.), 0.1s (max.)
   Sector erase time : 25ms (typ.), 0.5s (max.)
   Chip erase time : 250ms (typ.), 5s (max.)
   Page program time : 1.5ms/256 bytes (typ.), 2.5ms/256 bytes (max.)
• Status functions
   Ready/busy information, protect information
• Data retention period : 20 years
• Package : LE25FW418ATT MSOP8 (225mil)