M41T81SMY6E
IC RTC CLK/CALENDAR I2C 18SOXManufacturer: STMicroelectronics
Categories: Real Time Clocks
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The STMicroelectronics M41T81SMY6E is a Real-Time Clock (RTC) and Calendar IC, offering robust timekeeping capabilities. With its 2-wire serial I2C interface, this component facilitates seamless integration into designs requiring accurate time and date tracking. Key features include alarm functionality, leap year calculation, a square wave output, and an integrated watchdog timer, enhancing system reliability. The device operates across a voltage range of 2.7V to 5.5V, with a dedicated battery voltage range of 2V to 3.5V, ensuring continuous operation even during power outages. Typical current consumption for timekeeping is a low 100µA at 2.7V. The M41T81SMY6E supports both YY-MM-DD-dd date and HH:MM:SS:hh (24-hour) time formats. Packaged in an 18-SOX/18-SOIC form factor with integrated crystal, it is designed for surface mounting. This component is widely utilized in industrial automation, consumer electronics, and automotive applications where precise temporal data is critical.
Additional Information
Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:Download Free CAD Model:
Technical Details:
| Features | Alarm, Leap Year, Square Wave Output, Watchdog Timer |
| Packaging | Tube |
| Package / Case | 18-SOX, 18-SOIC with Crystal (7.5mm Width) |
| Mounting Type | Surface Mount |
| Memory Size | - |
| Interface | I2C, 2-Wire Serial |
| Type | Clock/Calendar |
| Operating Temperature | -40°C ~ 85°C |
| Voltage - Supply | 2.7V ~ 5.5V |
| Time Format | HH:MM:SS:hh (24 hr) |
| Date Format | YY-MM-DD-dd |
| Supplier Device Package | 18-SOX |
| Voltage - Supply, Battery | 2V ~ 3.5V |
| Current - Timekeeping (Max) | 100µA @ 2.7V ~ 5.5V |
| Programmable | Not Verified |
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