M41T81SM6F

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M41T81SM6F

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IC RTC CLK/CALENDAR I2C 8-SOIC

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Attribut Wert
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Type Clock/Calendar
Features Alarm, Leap Year, Square Wave Output, Watchdog Timer
TimeFormat HH:MM:SS:hh (24 hr)
DateFormat YY-MM-DD-dd
Interface I²C, 2-Wire Serial
Voltage-Supply 2.7V ~ 5.5V
Voltage-SupplyBattery 2V ~ 3.5V
Current-Timekeeping(Max) 100µA @ 2.7V ~ 5.5V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Übersicht

Description

The M41T81SM6F is a real-time clock (RTC) module manufactured by STMicroelectronics. It is designed for applications that require precise timekeeping and calendar functions. This device integrates a low-power clock/calendar function with a programmable time-of-day alarm and a user-programmable square-wave output.
Key features of the M41T81SM6F include:
1. Timekeeping: Provides a clock and calendar function with seconds, minutes, hours, day, date, month, and year information, including leap year compensation.
2. Low Power Consumption: Optimized for minimal power usage, which is crucial for battery-operated devices.
3. Alarm Function: Offers a programmable alarm to trigger events at specific times.
4. Communication Interface: Uses an I2C interface for communication, making integration with microcontrollers and other digital systems straightforward.
5. Compact Size: Typically packaged in a small SOP-8 package, making it suitable for space-constrained applications.
6. Battery Backup: The device can maintain accurate timekeeping during power failures with an external backup battery.
These features make the M41T81SM6F suitable for various consumer electronics, automotive applications, and any system requiring reliable timekeeping.

Equivalent

The M41T81SM6F is a serial real-time clock (RTC) IC. Equivalent or alternative products often depend on specific requirements but can include:
1. DS1307 from Maxim Integrated
2. PCF8563 from NXP Semiconductors
3. RX8025 from Epson
4. MCP7940N from Microchip Technology
5. RV-3028-C7 from Micro Crystal
Always verify compatibility with your application specifications before selecting an alternative.

Features

The M41T81SM6F is a serial real-time clock (RTC) chip with the following features:
1. Interface: Utilizes an I2C bus for communication, supporting standard, fast, and fast-plus modes.
2. Timekeeping: Provides time in seconds, minutes, and hours with a 24-hour or 12-hour format, including an AM/PM indicator.
3. Calendar Functionality: Tracks day, date, month, and year with built-in leap-year compensation up to the year 2100.
4. Clock Accuracy: Typically accurate to ±5 ppm at 25°C.
5. Alarm Function: Offers programmable alarm and interrupts for seconds, minutes, hours, day, date, and month.
6. Oscillator: Features a clock oscillator with an external 32.768 kHz crystal.
7. Automatic Battery Backup: Ensures continuity of timekeeping during power failures.
8. Low Power Consumption: Designed for minimal power use, reducing battery drain.
9. Operating Voltage: Works within a range of 1.8V to 5.5V.
10. Temperature Range: Operates in industrial temperature ranges, typically -40°C to +85°C.
11. Package: Available in an 8-pin SOIC package for easy integration.
These features make the M41T81SM6F suitable for a wide range of applications requiring reliable timekeeping.

Pinout

The M41T81SM6F is a serial real-time clock (RTC) IC from STMicroelectronics. It typically comes in a 6-pin package. The pin functions are as follows:
1. VCC: Power supply pin.
2. VBAT: Battery backup supply pin for maintaining timekeeping when the main power is off.
3. SDA: Serial Data Input/Output pin used for I2C communication.
4. SCL: Serial Clock Input pin for I2C communication.
5. FT/OUT: Frequency Test/Output pin, which can be configured to output a square wave or an interrupt signal.
6. GND: Ground pin.
This RTC provides timekeeping functionalities such as maintaining seconds, minutes, hours, day, date, month, and year information. It communicates through an I2C interface, allowing easy integration with microcontrollers. The device is designed for low-power applications, with the ability to switch to a backup battery when the main power source fails, ensuring continuous operation.

Manufacturer

The M41T81SM6F is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products. The company is known for providing solutions across various applications, including automotive, industrial, personal electronics, and communications equipment.
STMicroelectronics is recognized for its expertise in areas like microcontrollers, sensors, analog devices, power management, and digital integrated circuits, among others. With a strong focus on innovation, STMicroelectronics operates in collaboration with many industries to deliver solutions that enable smarter and more energy-efficient products. The company emphasizes sustainability and technological advancement and has a significant presence worldwide, with manufacturing plants, research and development facilities, and sales offices located in various countries.

Application

The M41T81SM6F is a real-time clock (RTC) module used in applications requiring precise timekeeping and calendar functions. It is commonly used in:
1. Consumer Electronics: For maintaining time in devices like TVs, set-top boxes, and digital cameras.
2. Industrial Systems: In automation equipment and control systems for scheduling and logging.
3. Computer Systems: To maintain system time in servers, PCs, and peripherals.
4. Telecommunications: For time-stamping and synchronization in network devices.
5. Medical Devices: To keep accurate time in diagnostic equipment.
6. IoT Devices: For time management in smart home devices and sensors.
Its low power consumption and integrated battery backup make it suitable for portable and battery-operated devices.

Package

The M41T81SM6F is a real-time clock (RTC) IC from STMicroelectronics, housed in an SOIC-8 (Small Outline Integrated Circuit) package. The SOIC-8 package is a small, surface-mount package with 8 pins, suitable for compact electronic devices.

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