The S25FL256LAGMFB000 is a 256 Mb (32 MB) serial NOR flash memory featuring 65-nm floating gate technology and SPI multi-I/O support, including single, dual, quad, QPI, and DDR modes. Operating from 2.7 V to 3.6 V, it withstands temperatures up to 125°C (AEC-Q100 Grade 1). Fast quad/DDR read rates reach 66 MBps, with a 256-byte page programming buffer and uniform 4 KB, 32 KB, and 64 KB erase options.