The S25FL064LABNFI041 is a 64 Mb SPI multi-I/O NOR flash memory using 65-nm floating gate technology and a 3.0 V supply. It supports single, dual, and quad I/O, QPI, and DDR read modes up to 108 MHz SDR and 54 MHz DDR. Features include extended addressing, page programming, uniform sector/block/chip erase, and four 256-byte security regions. With 100,000 program-erase cycles, it is ideal for automotive, industrial, and embedded systems requiring reliable storage.