The STMicroelectronics M41T01 is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz oscillator (external crystal controlled). Designed for applications requiring accurate timekeeping and data storage, this RTC offers a robust feature set that makes it an ideal choice for a wide range of consumer, industrial, and handheld applications.

Key Features

• Accurate Timekeeping: With an integrated crystal oscillator, the M41T01 maintains precise time tracking, ensuring that devices function on accurate schedules.
• Battery Backup: It includes a built-in battery backup input that allows for continuous timekeeping even when the main power supply is interrupted, making it perfect for applications where time data must be preserved without fail.
• Serial Interface: The device uses an I2C-compatible serial interface, facilitating easy integration with most microcontrollers and allowing for simple data transfer.
• Low Power Consumption: Designed for power-sensitive applications, the M41T01 operates with very low power consumption, contributing to extended battery life in portable devices.
• Programmable Alarm: An onboard programmable alarm can be set to trigger on a specific date, day of the week, or time, providing flexibility for event management within a system.
• Automatic Leap Year Correction: The M41T01 accounts for leap years up to the year 2100, ensuring consistent date information without the need for manual adjustments.

Applications

The versatility of the M41T01 makes it suitable for a diverse array of applications, such as:

• Embedded Systems
• Utility Meters
• POS Terminals
• Consumer Electronics
• Handheld Devices
• Industrial Controllers

Product Specifications

The M41T01 operates within a supply voltage range of 2.7V to 4.5V, and it is available in an 8-pin SOIC package. Its temperature range of -40°C to 85°C ensures reliable operation in extreme environmental conditions.

With its comprehensive feature set and proven reliability, the STMicroelectronics M41T01 Serial Real-time Clock is a go-to solution for designers looking to incorporate accurate timekeeping functionality into their systems.