M41T62 Datasheet (ST Microelectronics) - Low-power serial real-time clocks

M41T62, Low-power serial real-time clocks

1 Description The M41T6x is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz oscillator.

Eight registers are used for the clock/calendar function and are configured in binary-coded decimal (BCD) format.

Further eight registers provide status/control of alarm, 32 kHz output, cali

M41T62 Features

* Serial real-time clock (RTC) with alarm functions

* 400 kHz I²C serial interface

* Memory mapped registers for seconds, minutes, hours, day, date, month, year, and century

* Tenths/hundredths of second register

* 350 nA timekeeping current at 3 V

* T