The Cypress S25FL208K0RMFI013 is an 8 Mbit SPI NOR Flash memory from the FL2-K series, organized as 1M x 8 bits. It uses a standard SPI interface with Dual I/O support, clocked at up to 76 MHz. It comes in an 8-SOIC package (0.209" body width, 5.30 mm height). This is a non-volatile memory device intended for code shadowing, firmware storage, parameter logging, and configuration data in embedded systems — think industrial controllers, networking gear, and IoT edge nodes where a moderate-density serial Flash is the right fit.
For sustainment of existing designs, procurement must turn to the independent distribution channel — surplus inventory, new-old-stock, or broker-sourced material.
76 MHz SPI — bus margin and throughput
The 76 MHz clock rate on the SPI interface gives a theoretical throughput of 76 Mbps in single-I/O mode, or 152 Mbps with Dual I/O reads. For a typical firmware shadowing application (copying 8 Mbit from Flash to RAM at boot), that translates to roughly 100 ms read time at full speed — fast enough for most microcontroller boot sequences. The Dual I/O feature reduces the number of clock cycles needed for a read operation, which helps when the host SPI peripheral is clock-limited. The 5 ms page write time is typical for NOR Flash of this density; expect about 3 seconds to erase the full chip (sector erase granularity is not specified here, but the usual 4 KB or 64 KB sectors apply).