M41T11MH6F

The M41T11MH6F is an I2C real-time clock (RTC) device from STMicroelectronics’ M41Txx family. It provides reliable timekeeping for embedded systems, maintaining seconds through years with support for 12/24-hour formats, leap-year handling, and an alarm/timer feature set. The clock can run from a low-voltage supply and includes a battery-backup path so timekeeping is preserved during power loss. A 32.768 kHz crystal (or an external oscillator) is used as the timebase, with oscillator fault detection available. The device offers non-volatile registers for configuration and event data, and it supports low-power operation suitable for energy-sensitive applications. Communication is via a standard I2C two-wire interface, with a defined address map for time, date, control/status, and alarm settings. The MH6F suffix indicates a specific package/pinout variant; consult the data sheet for exact voltage ranges, timing, and pin configuration. Applications include microcontroller-based systems, wearables, and automotive electronics requiring accurate, battery-backed timekeeping.

M41T11MH6F features (RTC/clock IC):
- I2C serial interface for host MCU
- Real-time clock with calendar: seconds, minutes, hours, day, date, month, year; 12/24-hour mode; leap-year aware
- 32.768 kHz crystal input
- Battery-backup operation to keep time when main power is off
- Alarm and timer functions
- Programmable interrupt outputs and/or square-wave output
- Low power consumption for battery-powered applications
- Small 6-pin package MH6F
For exact specs and pinout, please refer to the datasheet.

8-pin SOIC (Small Outline IC) surface-mount package.

- Pin count: 8 pins (MH6F package)
- Function: Real-Time Clock/Calendar (RTC) with I2C interface (2-wire serial); requires a 32.768 kHz crystal for timekeeping (provides time/date data, and typically alarm/square-wave outputs).

Manufacturer: STMicroelectronics (ST).
Company type: STMicroelectronics is a multinational semiconductor company that designs, manufactures, and sells a wide range of semiconductor products, including microcontrollers, MEMS sensors, power management ICs, and other integrated circuits.

Applications of M41T11MH6F (I2C Real-Time Clock with battery backup) include:
- Embedded systems needing accurate timekeeping (MCUs, data loggers, digital clocks)
- Consumer electronics (set-top boxes, cameras, media players)
- Automotive (instrument clusters, telematics, infotainment)
- Industrial/building automation (controllers, PLCs, energy meters)
- Networking/communications (routers, switches, modems)
- Wearables and other battery-powered devices
Note: used wherever reliable timekeeping is required with power loss protection.