Overview
The LE25FU206 is a serial interface-compatible flash memory device with a 256K × 8-bit configuration. It uses a single 2.5V power supply for both reading and writing (program and erase functions) and does not require a special power supply. As such, it can support on-board programming. It has three erase functions, each of which corresponds to the size of the memory area in which the data is to be erased at one time: the small sector (4K bytes) erase function, the sector (64K bytes) erase function, and the chip erase function (for erasing all the data together).

FEATUREs
• Read/write operations enabled by single 2.5V power supply: 2.30 to 3.60V supply voltage range
• Operating frequency : 30MHz
• Temperature range : 0 to 70°C
   -40 to +85°C (at the planning stage)
• 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)
• Block protect function
• Highly reliable read/write
   Number of rewrite times : 10,000 times
   Small sector erase time : 40ms (typ.), 150ms (max.)
   Sector erase time : 80ms (typ.), 250ms (max.)
   Chip erase time : 160ms (typ.), 1.6s (max.)
   Page program time : 2.0ms/256 bytes (typ.), 2.5ms/256 bytes (max.)
• Status functions
   Ready/busy information, protect information
• Data retention period : 20 years
• Package : LE25FU206TT MSOP8 (225mil)
                 : LE25FU206MA MFP8 (225mil)