The S25FL064LABNFA043 is a 64 Mb (8 MB) automotive-grade serial NOR flash memory using 65-nm floating gate technology. It supports SPI single, dual, and quad I/O, QPI, and DDR commands. Operating from 2.7 V to 3.6 V and qualified to AEC-Q100 Grade 1 (-40°C to +125°C), it features a 256-byte page buffer, flexible erase options, and advanced security with individual and region protection. Endurance is 100,000 cycles with 20-year data retention.