The S25FL128LAGBHM023 is a 128 Mb (16 MB) SPI NOR flash memory using 65-nm floating gate technology. It supports single, dual, and quad SPI modes including QPI and DDR, operates from 2.7 V to 3.6 V, and offers industrial and automotive grades up to 125°C. Features include a 256-byte page buffer, uniform 4 KB/32 KB/64 KB erase, and up to 100,000 program/erase cycles per sector. Typical uses are code shadowing, XIP, and embedded storage in automotive and industrial systems.