Key facts
- Brand
- STMicroelectronics
- Model
- M41T00S
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-09
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STMicroelectronics M41T00S Serial Access Real-Time Clock Manual
The M41T00S is a low‑power serial access real‑time clock (RTC) with an integrated 32.768 kHz crystal‑controlled oscillator. It offers BCD‑coded calendar registers, automatic leap‑year handling, ultra‑low battery backup, and an I²C two‑wire serial interface for easy integration.
This manual includes a features summary, detailed pin‑out and package information, bus protocol description, read/write operation sequences, clock calibration, power‑fail detection, maximum ratings, and mechanical data. It also provides revision history and reference to related application notes.
STMicroelectronics M41T00S specifications
| Clock operating voltage | 2.0 to 5.5 V |
|---|---|
| Operating temperature | -40 to 85 °C |
| Ultra-low battery supply current | 0.6 pA |
Source: STMicroelectronics M41T00S Serial Real-Time Clock Datasheet
All STMicroelectronics M41T00S documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
Does the M41T00S support leap years?
Yes, the device automatically makes corrections for 28, 29, 30, and 31 day months, with leap year validity until the year 2100.
From: STMicroelectronics M41T00S Serial Real-Time Clock Datasheet
What is the operating voltage range for this clock?
The device operates with a clock supply voltage between 2.0 V and 5.5 V.
From: STMicroelectronics M41T00S Serial Real-Time Clock Datasheet
What is the operating voltage range of the M41T00S?
The device operates from 2.0 V up to 5.5 V.
From: STMicroelectronics M41T00S Serial Access Real-Time Clock Manual
How much current does the M41T00S draw in battery‑backup mode?
In ultra‑low battery mode it draws only 1 nA.
From: STMicroelectronics M41T00S Serial Access Real-Time Clock Manual