The S25FS256SAGNFI001 is a 256 Mbit (32 MB) serial NOR flash memory using 65 nm MIRRORBIT™ technology and Eclipse architecture for fast program and erase. Supporting SPI with single, dual, quad, and DDR Quad I/O, it achieves up to 80 MBps read speeds at 80 MHz. Operating from 1.7 V to 2.0 V, it features a 512-byte page buffer, hybrid and uniform sector options, and advanced security with OTP and sector protection.