M41T0DS6E

Real Time Clock Overview

The M41T0DS6E is a low-power serial real-time clock (RTC) IC from STMicroelectronics, designed for precise timekeeping in embedded systems. It features an integrated 32.768 kHz oscillator with built-in load capacitance of 12.5 pF, ensuring high stability and compatibility with crystals exhibiting high series resistance. The device operates on a two-line bidirectional I²C bus supporting the 400 kHz protocol, allowing efficient data transfer via eight BCD-formatted registers for seconds, minutes, hours, day, date, month, year, and century. It functions within a voltage range of 2.0 to 5.5 V and consumes a typical standby current of 0.9 μA at 3 V. The component includes an oscillator stop detection feature to monitor clock operation integrity. It is available in compact 8-lead plastic packages, specifically 8-TSSOP and 8-MSOP, and supports an operating temperature range of –40 to 85 °C.

Real Time Clock Feature Summary

• Integrated 32.768 kHz oscillator with built-in load capacitance for exceptional stability
• Serial I²C interface supporting 400 kHz protocol for efficient communication
• Oscillator stop detection capability to monitor clock operation status
• Low standby current consumption for extended battery life applications

Real Time Clock Applications

• Embedded systems requiring accurate timekeeping
• Data logging devices needing calendar functions
• Battery-powered consumer electronics
• Industrial control systems with environmental monitoring

Real Time Clock Procurement Notes

Verify that the specific suffix 'S6E' corresponds to the exact package type and tape-and-reel configuration required for your assembly process. Confirm compliance with RoHS and REACH directives as stated by the manufacturer. Ensure the selected variant matches the voltage and temperature specifications for your target application environment before finalizing procurement orders.

Real Time Clock Selection Notes

Select this component when a low-power serial RTC with integrated oscillator is required. The built-in load capacitance simplifies design by eliminating external capacitor selection. Consider the I²C interface speed and voltage levels against your system's microcontroller capabilities. The wide operating temperature range makes it suitable for diverse environmental conditions compared to standard commercial-grade alternatives.

Real Time Clock Part Context

The M41T0DS6E belongs to the M41T0 family of serial real-time clocks from STMicroelectronics. This family provides cost-effective solutions for timekeeping in space-constrained applications. The device utilizes binary coded decimal format for register data, simplifying software implementation for calendar calculations. It represents a mature technology platform widely used in various electronic products requiring reliable date and time tracking.

Real Time Clock Replacement Considerations

Check for direct pin-compatible substitutes within the M41T0 series, such as other variants with different package options or suffixes. Verify if alternative RTCs from other manufacturers offer similar I²C interfaces and power consumption profiles. Ensure any replacement maintains the same voltage range and temperature specifications to guarantee functional equivalence.