The SST25VF040B-50-4I-S2AE is a 4Mbit Serial Flash memory manufactured by Microchip. This memory device has an SPI-compatible interface with a maximum clock frequency of 50MHz, and it operates from a voltage range of 2.7V to 3.6V. The SST25VF040B-50-4I-S2AE comes packaged in an 8-pin SOIC-W (wide) package. This memory is designed for applications that require an efficient and reliable non-volatile storage solution. It is ideal for applications such as automotive, medical, consumer, and industrial systems that need high density non-volatile storage.