The M41T0M6E from STMicroelectronics is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz oscillator (external crystal controlled). This highly integrated timekeeping solution is designed for a wide range of applications that require accurate timekeeping, low power consumption, and additional memory features.

Key Features

• Accurate Timekeeping: The device maintains seconds, minutes, hours, day, date, month, and year information, with automatic leap year correction valid up to 2099.
• Low Power Consumption: It has a very low energy requirement, making it ideal for battery-powered applications. The device also features an automatic power-fail detect and switch circuitry that ensures long battery life.
• Serial Interface: The M41T0M6E communicates via I²C, a two-wire serial interface, which allows for easy integration into existing designs.
• Additional Memory: It includes additional 56 bytes of NV RAM that allows for storage of critical data that must be preserved in the event of a power loss.
• Compact Packaging: Available in an 8-pin SOIC or TSSOP package, the M41T0M6E is suitable for space-constrained applications.
• Wide Operating Temperature Range: It operates over an industrial temperature range of -40°C to +85°C.

Applications

The M41T0M6E is versatile and can be used in various applications where reliable timekeeping is paramount. These include:

• Telematics and transportation (e.g., black box automotive event recorders)
• Portable devices (e.g., handheld terminals)
• Medical devices
• Industrial and utility metering
• Consumer electronics (e.g., set-top boxes, digital cameras)

With its combination of features, the M41T0M6E RTC from STMicroelectronics is a reliable and cost-effective solution for embedded systems that require an accurate time base, low power consumption, and additional memory for data storage.