Serial Access Real-Time Clock
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M41T62, M41T63 M41T64, M41T65
Serial Access Real-Time Clock with Alarms
Feature summary
■ Counter...
Description
www.DataSheet4U.com
M41T62, M41T63 M41T64, M41T65
Serial Access Real-Time Clock with Alarms
Feature summary
■ 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 I2C bus (400kHz)
■ 350nA timekeeping current @ 3V ■ Low operating current of 35µA (@400kHz)
■ Timekeeping down to 1.0V ■ 1.3V to 4.4V I2C bus operating voltage
■ 32KHz square wave on power-up to drive a microcontroller in low power mode (M41T62/63/64)
■ Programmable (1Hz to 32KHz) square wave (M41T63/64)
■ Programmable alarm with interrupt function (M41T62/65)
■ Accurate programmable watchdog (from 62.5ms to 31 min)
■ Software clock calibration to compensate deviation of crystal due to temperature
■ Automatic leap year compensation
QFN16 (Q) 3mm x 3mm
VSOJ20 (47....
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