One chip time and temperature

Dallas, Tex.—Dallas Semiconductor announced DS1629 two wire digital thermometer and real-time clock, the first digital system component to incorporate a direct-to-digital temperature sensor and a real-time clock and Y2K-correct calendar on one chip, according to the company. The DS1629 provides digital accuracy and programmability for both time and temperature while cutting down the numbe...

06/01/1999


Dallas, Tex.—Dallas Semiconductor announced DS1629 two wire digital thermometer and real-time clock, the first digital system component to incorporate a direct-to-digital temperature sensor and a real-time clock and Y2K-correct calendar on one chip, according to the company. The DS1629 provides digital accuracy and programmability for both time and temperature while cutting down the number and size of components. It is accurate to 2 °C with nine bit readouts in increments of 0.5 °C. The user can fine tune a thermostatic response for extra sensitive applications, yielding 13-bit readouts in increments of 0.03125 °C. The real-time clock/calendar counts time for seconds through years, with leap year compensation through 2100. For timed and/or thermostatic interrupt functions it has open drain alarm outputs that activate at user-defined setpoints.

Dallas Semiconductor





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