M4T28-BR12SH1

The M4T28-BR12SH1 is a real-time clock (RTC) module manufactured by STMicroelectronics, designed for applications requiring precise timekeeping and low power consumption. This device is particularly useful in battery-operated systems, where maintaining accurate time is crucial even during power outages.

Key Features:

1. Timekeeping Functionality: The M4T28-BR12SH1 provides a full calendar function, including year, month, day, hour, minute, and second. It can handle leap years and is capable of counting down to the year 2099.

2. Memory: This RTC includes a built-in non-volatile memory (NVRAM) that allows for data storage even when the power is off. The memory capacity is typically around 28 bytes, which can be used for storing user-defined data.

3. Power Supply: The device operates on a wide voltage range, typically from 2.0V to 5.5V, making it versatile for various applications. It also features a low power consumption mode, which is essential for battery-powered devices.

4. Backup Battery: The M4T28-BR12SH1 is designed to work with a backup battery, ensuring that timekeeping continues even when the main power supply is interrupted. This feature is critical for applications where maintaining accurate time is essential.

5. Interface: The RTC communicates with microcontrollers via a standard I2C interface, allowing for easy integration into existing systems. This makes it compatible with a wide range of microcontrollers and development platforms.

6. Temperature Compensation: The device includes temperature compensation features to ensure accurate timekeeping across a range of operating temperatures, which is vital for applications in varying environmental conditions.

7. Package Type: The M4T28-BR12SH1 is typically available in a compact package, such as a SOIC (Small Outline Integrated Circuit) or DIP (Dual In-line Package), facilitating easy mounting on PCBs (Printed Circuit Boards).

8. Applications: This RTC is suitable for a variety of applications, including consumer electronics, industrial equipment, automotive systems, and any device requiring accurate timekeeping and data logging.

Summary:

The M4T28-BR12SH1 from STMicroelectronics is a robust and reliable real-time clock solution that combines timekeeping accuracy with low power consumption and non-volatile memory capabilities. Its versatility and ease of integration make it an ideal choice for a wide range of electronic applications where precise timing is essential.