The SST26VF064BEUI-104I/SM is a NOR flash 64Mb 2.3V to 3.6V SQI flash memory from Microchip. It is an SPI-type memory, meaning it can be operated either synchronously or asynchronously, and can operate at speeds of up to 40MHz. It has a wide voltage range, from 2.3V to 3.6V and is designed to provide low power consumption. Its Advance Memory Architecture allows it to use its typical features in demanding applications. Its features include Built-in ECC Technology, Sector Protection, Flexible Boot and Software Protection Modes, Programmable Parameter Blocks, Enhanced Extendability, and Extended Temperature Ranges. Additionally, it has enhanced sector lock capabilities, enabling maximum security and system flexibility.