TO-236-3, SC-59, SOT-23-3 encloses the ICs.A package containing integrated circuit is called Tape & Reel (TR).A mounting method of Surface Mount is used.The Silicon Serial Number type is available in many integrated circuits.You can find similar integrated circuit systems by searching for the DS2411 family.PCB, Network Node, Equipment Identification/Registration is a suitable integrated circuit for the ICs.3 pins are available on the ICs applications.This ICs complete is packaged by SOT-23-3.