Book of
iButton® Standards
关键词: iButton family overview, iButton family guide, iButton Standards, 1-Wire Standards, iButton mechanical specification, 1-Wire electrical specification
Abstract: An iButton is a chip housed in a stainless steel enclosure. To keep the cost of access low, the electrical interface is reduced to an absolute minimum, i.e., one data line plus ground (also called 1-Wire®). The energy needed for communication is "stolen" from the data line ("parasitic power").
Book of iButton® Standards.pdf