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.
Package and footprint — 16-SOIC wide body
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.
Lifecycle — active, no LTB pressure
Listed as active in production. For BOM planning that means you can commit this part without obsolescence risk for the foreseeable future.