These RW1990 chips we use an one, which passed reliable performance than others, the CMOS microcircuit is basically a 64-bit single digital code electronic carrier. The microcircuit supports the ROM Search 1-Wire Protocol function, which makes it possible for multiple devices to work on one bus. The code is stored in internal non-volatile memory. Data exchange is performed by the 1-Wire Protocol, which requires a single data pin and the common pin. This Protocol determines the conditions of alteration of the state of the bus and the time intervals during the synchronization by means of the interruptions of -pulses of the control device. The reading and writing of the data are performed by junior thian bit forward., Weight: 0.7054792384 pounds, Manufacturer: Ynusgeyx