The S25FL132K0XMFIS10: The part is packaged in an 8-SOIC for surface-mount assembly.
The SPI Quad I/O interface at 108 MHz delivers a read throughput that suits firmware-over-the-air staging, parameter storage, or code shadowing in a NOR-boot design. At this clock rate, the bus timing margin depends on PCB trace length and the host controller's input hold time — the 8-SOIC package keeps parasitics low, but a layout that routes the SPI lines past a switching regulator or a noisy clock tree will degrade the eye.