This document describes the features and characteristics of the M41T60 serial access real-time clock, including counters, crystal oscillator, serial interface, low power consumption, etc.
The document details the M41T60, a low-power real-time clock (RTC) integrated circuit designed for serial communication via an I2C bus. It includes counters for seconds through century, a built-in 32 kHz crystal oscillator with stop detection, and operates on voltages from 1.0 V to 4.4 V.
The I2C bus operates between 1.3 V and 4.4 V.
The device operates from –40 to 85 °C.
The timekeeping current is 350 nA at 3 V.