STMicroelectronics

M41T256YMT7E

M41T256YMT7E Description

The M41T256YMT7E is a highly integrated Real-Time Clock (RTC) and Calendar IC from STMicroelectronics, part of the renowned Timekeeper® series. This device is designed to provide accurate timekeeping and calendar functions, making it an essential component for various electronic systems that require precise time management. The M41T256YMT7E features a 32KB Non-Volatile Static Random Access Memory (NVSRAM) for data storage, ensuring data integrity even in the event of power loss. It operates within a supply voltage range of 4.5V to 5.5V and consumes a maximum of 2.5mA during timekeeping, making it energy-efficient. The device also supports a battery backup voltage range of 2.5V to 3.5V, further enhancing its reliability.

The M41T256YMT7E is packaged in a tube and is suitable for surface mount applications, adhering to a moisture sensitivity level (MSL) of 1, which indicates unlimited exposure to moisture. This makes it highly durable and suitable for a wide range of environmental conditions. The device is classified under the HTSUS code 8542.39.0001 and complies with REACH regulations, ensuring it is unaffected by the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) directive. Despite being marked as obsolete, the M41T256YMT7E remains a robust solution for applications requiring reliable timekeeping and data storage.

M41T256YMT7E Features

The M41T256YMT7E offers several unique features that set it apart from similar models in the market:

• Leap Year Calculation: The device automatically accounts for leap years, ensuring accurate date calculations over extended periods.
• 24-Hour Time Format: The RTC operates in a 24-hour format (HH:MM:SS:hh), providing clear and unambiguous timekeeping.
• NVSRAM Storage: With 32KB of NVSRAM, the M41T256YMT7E can store significant amounts of data securely, maintaining data integrity even when power is lost.
• Energy Efficiency: Consuming a maximum of 2.5mA during timekeeping, the device is designed to minimize power consumption, making it ideal for battery-powered applications.
• Wide Voltage Range: The M41T256YMT7E operates within a supply voltage range of 4.5V to 5.5V and supports a battery backup voltage range of 2.5V to 3.5V, providing flexibility in power supply options.
• Surface Mount Compatibility: The device is designed for surface mount applications, making it suitable for modern, compact electronic designs.
• Compliance and Durability: The M41T256YMT7E is REACH unaffected and has an MSL of 1, ensuring it is durable and compliant with environmental regulations.

M41T256YMT7E Applications

The M41T256YMT7E is ideal for a variety of applications where accurate timekeeping and reliable data storage are crucial. Some specific use cases include:

• Embedded Systems: Ideal for embedded systems that require precise time management and data logging capabilities.
• Industrial Automation: Suitable for industrial applications where reliable timekeeping and data integrity are essential for process control and monitoring.
• Telecommunications: Useful in telecommunication systems for maintaining accurate time synchronization and storing critical data.
• Consumer Electronics: Applicable in consumer electronics devices that require timekeeping functions, such as digital clocks, smart home devices, and IoT applications.
• Medical Devices: Can be used in medical devices where accurate timekeeping and data storage are critical for patient monitoring and device functionality.

Conclusion of M41T256YMT7E

The M41T256YMT7E from STMicroelectronics is a versatile and reliable RTC and Calendar IC that offers a combination of accurate timekeeping, robust data storage, and energy efficiency. Its unique features, such as leap year calculation, 24-hour time format, and NVSRAM storage, make it a superior choice for applications requiring precise time management and data integrity. Despite being marked as obsolete, the M41T256YMT7E remains a valuable component for various industries, ensuring reliable performance and compliance with environmental regulations.