M41T83ZMY6E

Real Time Clock Overview

The M41T83ZMY6E is a low-power serial I2C real-time clock (RTC) manufactured by STMicroelectronics. It integrates a built-in oscillator and provides clock/calendar functionality with automatic leap year correction. The device features 7 bytes of user SRAM, two alarm interrupts, a watchdog timer, and a programmable square wave output. It operates within a supply voltage range of 2.38V to 5.5V and supports an industrial temperature range from -40°C to +85°C. The component is housed in an 18-SOX package with an embedded crystal.

Real Time Clock Feature Summary

• I2C interface with automatic address increment
• Built-in power fail detection and battery switchover
• Embedded 32.768 kHz crystal in SOX18 package
• 7-byte user SRAM for data storage

Real Time Clock Applications

• Industrial control systems requiring precise timekeeping
• Consumer electronics with calendar functions
• IoT devices needing low-power RTC solutions

Real Time Clock Procurement Notes

Verify the specific suffix 'E' against the manufacturer's current datasheet to confirm packaging details and availability status. Check for end-of-life notifications or alternative recommendations from STMicroelectronics before finalizing procurement plans.

Real Time Clock Selection Notes

Select this model when an embedded crystal is required to reduce external component count. Ensure the design accommodates the 18-SOX package dimensions. Verify that the I2C bus speed requirements are compatible with the device's maximum clock frequency specifications.

Real Time Clock Part Context

This part belongs to the M41T8x family of serial RTCs. It shares functional similarities with the M41T83 but differs in package configuration. The ZMY6E suffix indicates specific tape and reel packaging options available through distributors.

Real Time Clock Replacement Considerations

Direct replacements include other variants within the M41T83 series such as M41T83ZMY6F, provided pin compatibility and package constraints are verified. Cross-reference with M41T82 if a smaller SO-8 package is acceptable.