16 Mbit SPI NOR Flash — what it fits
The S25FL116K0XMFV040 is a 16 Mbit SPI NOR Flash from the FL1-K series, organized as 2M x 8 bits. It communicates over a Quad I/O SPI interface at up to 108 MHz, which gives fast read throughput for code shadowing or configuration storage in embedded systems. Supply range is 2.7 V to 3.6 V, and the operating temperature spans -40°C to 105°C, so it handles outdoor enclosures or warm industrial cabinets without derating.
Housed in an 8-SOIC (0.154", 3.90 mm width) — a standard surface-mount footprint. MSL rating is not in the ledger, so if you are planning a bake step, pull the MSL from the datasheet before the reflow profile is locked. The 8-SOIC places cleanly on a standard pick-and-place; no tombstoning risk with a balanced pad layout.