iButton and Memory
iButton® devices provide a unique solution for applications where information needs to travel with a person or an object, even in harsh environments. The silicon chip within the iButton device is laser etched with a unique and unalterable address and is protected by a highly durable stainless steel can. You can drop it, step on it, or scratch it. The lid and base of the can act as the contacts for the silicon chip. iButton devices are wear-tested for 10-year durability. Many iButton devices make use of the 1-Wire® serial protocol.