Key facts
- Brand
- STMicroelectronics
- Model
- M41T81S
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-09
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STMicroelectronics M41T81S RTC Datasheet
Datasheet 32 pages · 502 KB · EN
The M41T81S is a low-power serial real-time clock (RTC) featuring a built-in 32.768 kHz oscillator controlled by an external crystal or embedded in specific packages. It utilizes eight bytes of SRAM for the clock/calendar function and includes additional registers for alarms, watchdog timers, and square wave outputs.
Read onlineSTMicroelectronics M41T81S specifications
| Supply voltage (VCC) | 2.7 to 5.5 V |
|---|---|
| Power-down current | 0.6 µA (typ) |
| Operating temperature | -40 to 85 °C |
| Oscillator frequency | 32 KHz |
All STMicroelectronics M41T81S documents by type
Datasheet 1
Ratings, dimensions and ordering codes, for selection and design work.
Other documents 1
Questions answered in these manuals
What is the power supply voltage range?
The device operates with a supply voltage between 2.7 V and 5.5 V.
Does the M41T81S include an oscillator?
Yes, it includes a built-in 32 KHz crystal oscillator with integrated load capacitance.