The S25FS512SAGNFV010 is a 512 Mb (64 MB) SPI NOR flash memory using 65-nm MIRRORBIT™ technology and Eclipse architecture for fast program and erase. It operates from 1.7 V to 2.0 V, supports up to +125°C, and achieves up to 133 MHz read. Features include multi-I/O SPI (x1, x2, x4), 512-byte page programming, hybrid/uniform sectors, 20-year data retention, and advanced security with OTP and password protection. Ideal for code storage and embedded applications.