M41T11MH6E

Real Time Clock Overview

The M41T11MH6E is a low-power serial real-time clock (RTC) integrated circuit manufactured by STMicroelectronics. It features a built-in 32.768 kHz oscillator and provides 56 bytes of non-volatile RAM for user data storage. The device operates on a supply voltage range of 2V to 5.5V, with a maximum current consumption of 70µA within this range. It utilizes an I²C two-wire serial interface for communication. The component is housed in a 28-SOP package with a width of 8.89mm, designed with SNAPHAT socket compatibility for direct connection to battery and crystal modules.

Real Time Clock Feature Summary

• Integrated 56-byte NVRAM for persistent user data storage alongside clock functions
• I²C bus interface supporting standard protocol for efficient data transfer
• Automatic power failure detection with seamless switchover to battery backup
• SNAPHAT socket design enabling post-reflow assembly of battery and crystal components

Real Time Clock Applications

• Industrial automation systems requiring precise timekeeping and data logging
• Consumer electronics utilizing battery-backed memory for configuration retention
• Embedded controllers needing reliable calendar and time counters

Real Time Clock Procurement Notes

Verify component status as the M41T11MH6E is listed as discontinued in available distributor records. Confirm availability of alternative packages or end-of-life management plans from STMicroelectronics before finalizing procurement strategies. Ensure compatibility with existing PCB layouts regarding the 28-SOH footprint and SNAPHAT housing requirements.

Real Time Clock Selection Notes

Select this component when a combination of RTC functionality and substantial non-volatile memory is required in a single package. The 28-pin SOH form factor with SNAPHAT support is suitable for designs prioritizing thermal protection of the battery during surface mount processing. Verify that the system architecture supports I²C communication at the required speed and that the 2V-5.5V operating range aligns with the target power supply rails.

Real Time Clock Part Context

The M41T11MH6E belongs to the M41T11 series of serial real-time clocks. This series distinguishes itself by integrating significant SRAM capacity directly with the timekeeping logic. The MH6E suffix indicates the specific 28-lead SOP variant equipped with SNAPHAT sockets, differentiating it from standard SOIC packages or other pin-count variants within the broader M41T family.

Real Time Clock Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult STMicroelectronics documentation for cross-reference recommendations or evaluate similar RTCs with integrated NVRAM if discontinuation impacts production timelines.