The S25FL164K0XBHIS30: Infineon Technologies has classified this part as Obsolete. No official successor or pin-compatible replacement is recorded in the manufacturer's lifecycle data.
SPI Quad I/O read performance and write timing
The 108 MHz clock rate on the Quad I/O interface yields a sustained read throughput that suits firmware shadowing or execute-in-place (XIP) code storage in embedded systems. Page write cycle time is 3 ms typical — budget this into the firmware update sequence; a full 64 Mbit erase and reprogram cycle will take multiple seconds over the SPI bus.