M41T66 clock equivalent, serial real-time clock.
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Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century 32 KHz crystal oscillator integrating load capacitance and .
32 KHz square wave on power-up to drive a microcontroller in low-power mode Programmable (1 Hz to 32 KHz) square wave Pr.
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2.1 2-wire bus characteristics . . . ..
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