M41T11M6E Serial Real-Time Clock IC with 56-Byte NVRAM, 8-pin SMD
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Prices updated: 13 Oct 2026
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About this product
The M41T11M6E is a serial real-time clock IC that tracks seconds, minutes, hours, date, month, year and century, with automatic leap-year compensation. It communicates over I2C and includes 56 bytes of general-purpose RAM, suiting data loggers, embedded timekeeping and battery-backed clock designs.
Specifications
- Interface
- I2C (100 kHz protocol)
- Clock operating voltage
- 2.0 V to 5.5 V
- Battery supply current
- 0.8 µA typ. at 3 V
- General purpose RAM (NVRAM)
- 56 bytes
- Crystal oscillator
- 32 kHz, integrated 12.5 pF load capacitance
- Operating temperature
- -40 °C to 85 °C
- Package
- 8-pin SMD (SOIC)
Frequently asked questions
Does it need an external crystal?
Yes. Connect a 32.768 kHz crystal to the oscillator pins. The IC integrates the 12.5 pF load capacitance, so external load capacitors are not needed for the crystal.
Can it run on a 3.3 V system?
Yes. The clock operates from 2.0 V to 5.5 V, so it works on both 3.3 V and 5 V systems. For battery backup, connect a suitable cell as described in the datasheet.
