M41T60Q6F Datasheet PDF - ST Microelectronics

Description

●The M41T60 is a low power serial RTC with a built-in 32.768 kHz oscillator (external crystal controlled). Eight registers are used for the clock/calendar function and are configured in binary coded decimal (BCD) format. Addresses and data are transferred serially via a twoline bi-directional bus. The built-in address register is increased automatically after each WRITE or READ data byte.

●Features

●■ Counters for seconds, minutes, hours, day, date, month, years, 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 (400 kHz)

●■ 350 nA timekeeping current at 3 V

●■ Low operating current of 35 µA (at 400 kHz)

●■ Timekeeping down to 1.0 V

●■ 1.3 V to 4.4 V I2C bus operating voltage

●■ Software clock calibration to compensate deviation of crystal due to temperature

●■ Software programmable output (OUT)

●■ Operating temperature of –40 to 85 °C

●■ Automatic leap year compensation

●■ Lead-free 16-pin QFN package

●■ Li-ion rechargeable operation