M41T83SMY6E

Real Time Clock Overview

The M41T83SMY6E is a low-power serial I2C real-time clock (RTC) manufactured by STMicroelectronics. It features an embedded 32.768 kHz crystal within its 18-SOX package, eliminating the need for external oscillator components. The device provides non-volatile timekeeping with automatic leap year correction and includes seven bytes of user-accessible SRAM. Key electrical parameters include a supply voltage range of 2.38V to 5.5V and a maximum timer current of 10µA at 5.5V. It supports I2C communication and operates within a temperature range of -40°C to +85°C.

Real Time Clock Feature Summary

• Embedded 32.768 kHz crystal in 18-SOX package
• Automatic calendar correction including leap years
• Built-in power failure detection and battery switchover
• Seven bytes of user SRAM

Real Time Clock Applications

• Industrial systems requiring precise timekeeping
• Consumer electronics with battery backup needs
• IoT devices utilizing I2C interfaces

Real Time Clock Procurement Notes

Verify component status as the M41T83ZMY6E variant is listed as obsolete in public distributor records. Confirm availability of the specific SMY6E suffix through official STMicroelectronics channels or authorized partners. Ensure the 18-SOX package with embedded crystal matches the design requirements before procurement.

Real Time Clock Selection Notes

Select this model when board space is limited due to the integrated crystal in the SOX18 package. Compare against the M41T82 if an SO-8 package without an embedded crystal is preferred. Verify that the I2C interface speed and voltage levels are compatible with the host microcontroller.

Real Time Clock Part Context

This component belongs to the M41T8x family of serial RTCs. The M41T83 variant specifically distinguishes itself from the M41T82 by offering the SOX18 package with an embedded crystal, whereas the M41T82 is restricted to the SO-8 package requiring an external crystal.

Real Time Clock Replacement Considerations

Public records indicate the M41T83ZMY6E is obsolete. Check for direct replacements such as the M41T83ZMY6F or other M41T83 variants with updated manufacturing statuses. Ensure pin compatibility and register map consistency when substituting.