The CD4017, also known as CD4017BE, is a widely used integrated circuit (IC) that belongs to the CMOS (Complementary Metal-Oxide-Semiconductor) family. Specifically, the CD4017 is a decade counter and divider IC, frequently utilized in electronic projects for various applications due to its ease of use and versatility.Decade Counter Functionality: The CD4017 is primarily designed as a decade counter, which means it can count in sequences of ten, cycling through ten different states or outputs sequentially.