The S25FL064LABBHA023 is a 64 Mb (8 MB) SPI NOR flash memory using 65-nm floating gate technology, supporting single, dual, and quad SPI with QPI and DDR modes. It operates from 2.7 V to 3.6 V and withstands temperatures up to 125°C (AEC-Q100 Grade 1). Features include a 256-byte page buffer, multiple erase sizes, up to 54 MBps read throughput, and advanced security with four 256-byte Security Regions. Typical uses are code storage, data logging, and embedded boot memory.