The M41T56N is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz oscillator (external crystal controlled) and an integrated crystal. Manufactured by STMicroelectronics, a leader in semiconductor solutions, this RTC provides high accuracy and reliability in timekeeping. It is a part of the M41T00 family of real-time clocks, which are known for their stability and performance in a wide range of applications.

Key Features

• Timekeeping: Hours, minutes, and seconds in 24-hour binary-coded decimal (BCD) format.
• Calendar: Date, month, year, and day of the week in BCD format with leap year compensation valid up to 2099.
• Alarm: An onboard programmable alarm function allows users to set daily or monthly alarms.
• Serial Interface: I2C serial interface for easy integration into various systems.
• Low Power Consumption: Designed for battery-powered applications with low power consumption.
• Automatic Power-Fail Detect: The device features an automatic power-fail detect and switch circuitry.
• Watchdog Timer: An integrated watchdog timer with a programmable delay from 62.5 ms to 128 s.

Applications

The M41T56N is suitable for a wide range of applications where accurate timekeeping is of the essence. These include:

• Industrial systems
• Utility meters
• POS terminals
• Consumer electronics
• Handheld devices

Technical Specifications

With its compact package and comprehensive feature set, the M41T56N from STMicroelectronics is an excellent choice for designers looking to integrate a reliable RTC into their systems.