The S25FL128SAGNFV001 is a Serial Flash memory device manufactured by Infineon Technologies. It is a 128 Megabit (16 MByte) non-volatile memory device designed for use in low-voltage, low-power applications. It has an SPI bus interface operating up to 104 MHZ and can store up to 128 megabits of data in its flash memory. The S25FL128SAGNFV001 also comes with write protection and advanced security features, such as a factory-programmed one-time programmable (OTP) memory block, erase and write protection blocks, and user-defined fields. The device is designed for a wide range of applications, such as secure code storage for embedded applications, storing program codes for industrial automation, home automation, medical devices, automotive and consumer applications.