The S25FS256SDSNFI003 is a 256 Mbit (32 MB) serial NOR flash memory with a 1.7 V to 2.0 V supply, built on 65 nm MIRRORBIT™ technology and Eclipse architecture for fast program and erase. It supports SPI, Dual, and Quad I/O, with up to 80 MBps DDR Quad and 66 MBps Quad SDR read speeds. Offering 100,000 program/erase cycles per sector, 20-year data retention, and advanced security features, it operates from -40°C to +105°C for reliable embedded and automotive applications.