Download the M41T64 datasheet PDF.
This datasheet also covers the M41T62 variant, as both devices belong to the same low-power serial real-time clocks family and are provided as variant models within a single manufacturer datasheet.
General Description
The M41T6x is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz oscillator.
Eight registers are used for the clock/calendar function and are configured in binary-coded decimal (BCD) format.
Key Features
Serial real-time clock (RTC) with alarm functions.
400 kHz I²C serial interface.
Memory mapped registers for seconds, minutes, hours, day, date, month, year, and century.
Tenths/hundredths of second register.
350 nA timekeeping current at 3 V.
Time keeping down to 1.0 V.
1.3 V to 4.4 V I²C bus operating voltage.
4.4 V max. VCC suitable for lithium-ion battery operation.
Full PDF Text Transcription for M41T64 (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
M41T64. For precise diagrams, and layout, please refer to the original PDF.
M41T62, M41T64, M41T65 Datasheet Low-power serial real-time clocks (RTCs) with alarm 3mm 3mm QFN16 3 x 3 mm 1.5 mm 3.2 mm Embedded crystal LCC8 1.5 x 3.2 mm No external c...
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x 3 mm 1.5 mm 3.2 mm Embedded crystal LCC8 1.5 x 3.2 mm No external crystal required Maturity status link M41T62 M41T64 M41T65 Features • Serial real-time clock (RTC) with alarm functions – 400 kHz I²C serial interface – Memory mapped registers for seconds, minutes, hours, day, date, month, year, and century – Tenths/hundredths of second register • 350 nA timekeeping current at 3 V • Time keeping down to 1.0 V • 1.3 V to 4.4 V I²C bus operating voltage – 4.4 V max. VCC suitable for lithium-ion battery operation • Low operating current of 35 µA (at 400 kHz I²C speed) • 32 kHz square wave output is on at power-up. Suitable
M41T64 Datasheet
