The Cypress S25FL116K0XMFB013 is a 16 Mbit SPI Quad I/O NOR Flash memory from the automotive-qualified series. It is designed for code shadowing, firmware storage, and parameter logging in embedded systems that need non-volatile memory with fast read throughput.
Obsolete — sourcing and replacement
The S25FL116K0XMFB013 is officially obsolete per the manufacturer. No direct replacement is listed, so buyers should plan for last-time-buy or surplus-channel procurement.
The 108 MHz clock frequency supports fast read operations, which matters for systems that execute code directly from Flash (XIP) or need quick boot times. The SPI Quad I/O interface uses four data lines, quadrupling throughput over single-bit SPI without adding pins — a common choice for MCUs with Quad SPI peripherals. The 16 Mbit density (organized as 2M x 8) is a sweet spot for bootloaders, calibration tables, and small file systems in embedded designs. Write cycle time is 3 ms per page, typical for NOR Flash, so expect page-program latencies during firmware updates.