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M41T65 - Low-power serial real-time clocks

Download the M41T65 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.

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.

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 I².

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (M41T62_STMicroelectronics.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
M41T63 Serial Access Real-Time Clock STMicroelectronics
M41T66 Serial real-time clock STMicroelectronics
M41T00AUD Serial real-time clock STMicroelectronics
M41T00CAP Serial access real-time clock STMicroelectronics
M41T00S Serial real-time clock STMicroelectronics

Other Datasheets by STMicroelectronics

Part Number Description
M41T60 Serial Access Real-Time Clock
M41T62 Low-power serial real-time clocks
M41T64 Low-power serial real-time clocks
M41T0 Serial real-time clock
M41T00 serial real time clock

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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 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 for driving a microcontroller in low-power mode.
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