The S25FL064LABNFI013 is a 64 Mb SPI flash memory using 65-nm floating gate technology. It supports single, dual, quad, and QPI modes with DDR read, operates from 2.7 V to 3.6 V, and withstands up to 125°C (AEC-Q100 Grade 1). The device offers 108 MHz SDR and 54 MHz DDR read speeds, 256-byte page programming, uniform sector/block/chip erase, and robust security with block and password protection. Typical uses include code shadowing, XIP, and embedded storage.