16 Mbit SPI NOR Flash — obsolete, but still spec'd into field-replacement and legacy BOMs
The Infineon S25FL116K0XNFV011 is a 16 Mbit SPI Quad I/O NOR Flash memory from the FL1-K series. It stores firmware or configuration data in a non-volatile array organized as 2M x 8 bits, and communicates over a Quad-SPI bus at up to 108 MHz.
Infineon lists the S25FL116K0XNFV011 as obsolete.
The 3 ms page write time (word or page) is typical for this NOR generation — budget for it if the application does frequent in-system updates. The 2.7 V minimum supply means the part stays operational through a 3.3 V rail that droops under load, which matters in battery-backed or capacitor-hold designs.
