SST26VF040A-80E/SN with NOR Flash 4Mb, 2.3V to 3.6V, SPI,SDI,SQI, 80MHz, E temp, 8-SOIC manufactured by Microchip is a 4Mb flash memory component that operates between 2.3V and 3.6V. It supports SPI, Serial Peripheral Interface (SDI), Serial Quad Interface (SQI) and has a fast speed of 80MHz. It has an extended temperature range and is available in an 8-pin SOIC package. This part is manufactured by Microchip.