Mikroe SWI EEPROM Click provides a highly reliable memory solution and features the Microchip Technology AT21CS01 single-wire serial EEPROM. The AT21CS01 has a unique, factory-programmed 64-bit serial number. It also has an ultra-high write endurance capability allowing more than one million cycles for each memory location. It’s internally as 128 words of 8 bits each with achieved communication through a single I/O pin with Standard-Speed and High-Speed mode options. It also offers a security register with a factory-programmed serial number, which makes it the easiest way to add identification to various accessories and consumables.