The S25FL256LDPNFI011 is a 256 Mb SPI NOR flash memory using 65-nm floating gate technology, supporting up to 133 MHz SDR or 66 MHz DDR in x1, x2, and x4 I/O modes. It operates from a 2.7 V to 3.6 V supply and supports automotive temperature grades up to +125°C (AEC-Q100 Grade 1). Features include a 256-byte page buffer, multiple erase options, 100,000 program/erase cycles, and 20-year data retention. Security and region protection suit automotive and industrial code storage.