Adesto AT25SF family includes 4-, 8-, 16-, and 32‐Mbit density multi‐I/O products designed for higher density devices. The AT25SF series incorporates a uniform, block-erase architecture to provide application flexibility. These SPI‐compatible 2.5V to 3.6V products feature up to a 104MHz operating speed and fast program and erase times. The devices also include security features such as a programmable security register and hardware controlled locking of protected blocks. The AT25SF family is ideal for high‐volume, consumer‐based applications in which program code is shadowed from flash into embedded or external RAM for execution.