512 Mbit NOR Flash with Quad SPI for code shadowing
It uses a SPI Quad I/O interface running at 66 MHz, with a 2.7 V to 3.6 V supply range and -40°C to 85°C industrial temperature rating.
Industrial temperature and active lifecycle
For a production BOM that needs a second source, the S25FL512SAGMFIR10 is a direct functional equivalent (same 512 Mbit, same 16-SOIC, same temperature grade) but clocked at 133 MHz; verify Quad I/O timing compatibility if the host controller is marginal at 66 MHz.
For a BOM freeze, the 66 MHz clock and industrial temperature grade are the two specs that gate fit.
