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M41T66 Serial real-time clock

M41T66 Description

M41T66 Serial real-time clock with alarms .

M41T66 Features

* Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century 32 KHz crystal oscillator integrating load capacitance and high crystal series resistance operation Oscillator stop detection monitors clock operation Serial interface supports I C bus (400

M41T66 Applications

* 32 KHz square wave on power-up to drive a microcontroller in low-power mode Programmable (1 Hz to 32 KHz) square wave Programmable alarm with interrupt function Accurate programmable watchdog (from 62.5 ms to 31 min) Software clock calibration to compensate deviation of crystal due to temperature Au

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Serial real-time clock STMicroelectronics
STMicroelectronics M41T66-like datasheet