The S25FS256SAGBHV203 is a 256 Mbit (32 MB) serial NOR flash memory based on 65-nm MIRRORBIT™ technology, supporting SPI Multi-I/O at 1.7 V to 2.0 V. It delivers up to 133 MHz SDR and 80 MBps DDR Quad I/O read speeds, with 256- or 512-byte page programming and hybrid or uniform sector erase. Qualified to AEC-Q100 Grade 2 (-40°C to +105°C), it offers advanced sector protection, 100,000 program-erase cycles, and 20-year data retention for automotive and industrial use.