M41T11MH6F

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M41T11MH6F

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IC RTC CLK/CALENDAR I2C 28-SOIC

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Specifications

Attribute Value
Supplier STMicroelectronics
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Active
Type Clock/Calendar
Features Leap Year, NVSRAM
Memory Size 56B
Time Format HH:MM:SS
Date Format YY-MM-DD-dd
Interface I²C, 2-Wire Serial
Voltage - Supply 2V ~ 5.5V
Voltage - Supply, Battery 2.5V ~ 3.5V
Current - Timekeeping(Max) 70µA @ 2V ~ 5.5V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount

Overview

Description

An introduction to M41T11MH6F: It is an I2C real-time clock/calendar IC in STMicroelectronics’ M41Txx family. The device provides persistent timekeeping with a battery backup, so the clock continues during power outages. It typically uses a 32.768 kHz oscillator and stores time and date information (seconds, minutes, hours, day, date, month, year) with leap-year correction. Features commonly include programmable alarms, a configurable square-wave output, and a trickle-charge facility to keep the backup source charged from the main supply. It’s designed for microcontroller-based systems requiring accurate timekeeping, event stamping, and low power operation. Communication with a host MCU happens over I2C to read/write time data and configure alarms or outputs. For exact electrical characteristics, pinout, and packaging (including MH6F variant specifics), consult the M41T11MH6F datasheet.

Features

Here are typical features of the M41T11MH6F (RTC/clock-chip family):
- Serial I2C (2-wire) real-time clock/calendar
- On-chip RAM for data storage
- Timekeeping: seconds, minutes, hours, day, date, month, year; includes day-of-week; supports 12/24 hour formats
- 32.768 kHz oscillator input for timekeeping
- Leap-year correction
- Programmable alarm(s) and timer outputs with interrupt
- Battery-backup operation with automatic power-switching
- Trickle-charge capability for backup power
- Wide supply range with low-power operation
- Small package (often 6-pin/opt. tiny-6 style)
Note: exact electrical specs (voltage ranges, RAM size, alarm features) can vary by revision/package; please refer to the specific datasheet for M41T11MH6F for precise figures.

Pinout

- Pin count: 8 pins (SOIC-8/DIP-8).
- Function: Serial real-time clock/calendar (RTC) with I2C interface (2-wire); provides time/datekeeping (seconds to year) and alarm/timer features, with support for battery backup using a 32.768 kHz clock input.

Manufacturer

Manufacturer: STMicroelectronics (ST).
What kind of company: A multinational semiconductor company that designs, develops, and manufactures a broad range of integrated circuits and electronic components.

Application

Application areas of M41T11MH6F:
- Battery-backed real-time clock for embedded systems (timekeeping, calendars, alarms, time stamps)
- Data logging and event recording
- Microcontroller-based consumer electronics
- Automotive electronics (clocks, timers, logging)
- Industrial and medical equipment
- Networking/telecom gear (time stamping, scheduling)
- Smart meters, home automation and IoT devices

Package

8-pin surface-mount SOIC (SO-8) package, Pb-free (RoHS).

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