The SST26WF040B-104I/SN is a part of Microchip's lineup of SuperFlash memory. It is a 4 Mbit Serial Flash Memory with sector architecture. It features a low-power CMOS (Complementary Metal–Oxide–Semiconductor) technology, enhanced sector protection and a fast write cycle time. This type of memory is designed for use in secure digital, audio and video gaming applications where fast and secure read/write access are required. The SST26WF040B-104I/SN is required to operate at a voltage range of 1.7 V to 3.6 V and has an access time of 70 ns. It also supports 10,000 erase/program cycles.