The S25FL256LAGMFM001 is a 256 Mb (32 MB) serial NOR flash memory using 65-nm floating gate technology and supporting SPI multi-I/O with single, dual, quad, QPI, and DDR modes. It operates from 2.7 V to 3.6 V and delivers up to 66 MBps read speed. Features include a 256-byte page programming buffer, uniform erase options, advanced security regions, and 100,000 program/erase cycles.