M41T00 Datasheet (ST Microelectronics)

M41T00, serial real time clock

The M41T00 is a low power serial real time clock with a built-in 32.768 kHz oscillator (external crystal controlled).

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

M41T00 Features

* For new designs use M41T00S

* Counters for seconds, minutes, hours, day, month, years, and century

* 32 kHz crystal oscillator integrating load capacitance (12.5 pF) providing exceptional oscillator stability and high crystal series resistance operation

* Serial interface supports