128 Mbit NOR Flash with Quad-SPI — what the 133 MHz buys you
The S25FL128SAGMFIG00: 128 Mbit NOR Flash organized as 16M x 8, SPI Quad I/O interface at 133 MHz.
Supply and temperature — fits the industrial baseline
Runs on a 2.7V to 3.6V rail, so it drops straight into a 3.3V system without a level translator on the SPI lines. If your application runs hotter — say under-hood or near an exhaust — the extended-temperature siblings S25FL128SAGMFV010, S25FL128SAGMFB000, and S25FL128SAGMFV000 are rated to 105°C.
16-SOIC wide-body (7.50 mm width) surface-mount package. The 0.295-inch body pitch is standard for NOR Flash in this density class.
Listed as active in production. For BOM planning that means you can commit this part without obsolescence risk for the foreseeable future.