Interfacing the DS1620 with a DS5000/8051 Microcontroller

Abstract: This application note introduces the user to software for interfacing a DS5000 (8051 compatible) microcontroller to the DS1620 digital temperature sensor. The DS1620 communicates via a 3-wire serial digital interface. Software code is provided that reads the DS1620 temperature register and calculates high-resolution results based on data from the counter and slope accumulator registers.