The S25FL208K0RMFI041 is an 8 Mbit NOR Flash memory from Cypress's FL2-K series, organized 1M × 8 and accessed through an SPI interface clocked at 76 MHz. It operates from 2.7 V to 3.6 V and is rated for -40°C to 85°C. The 8-SOIC package suits board-level firmware storage, boot code, or parameter tables in industrial controllers, telecom modules, and embedded systems that need a serial NOR with a small footprint.
76 MHz SPI — bus margin matters here
The 76 MHz SPI clock is the headline interface speed. At this rate, PCB trace length and signal integrity on the SPI bus matter — keep the clock line short, match impedance, and route the data lines away from noisy switching rails. The 5 ms page write time is typical for this density and process node; it sets a floor on how fast you can update firmware or log data in a write-intensive loop.