M41T62 - Low-power serial real-time clocks

Product Overview

ST Microelectronics

Datasheet Details

Part number	M41T62
Manufacturer	STMicroelectronics
File Size	700.13 KB
Description	Low-power serial real-time clocks
Datasheet	M41T62 Datasheet
Additional preview pages of the M41T62 datasheet.

Product details

Description

1 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.Further eight registers provide status/control of alarm, 32 kHz output, calibration, and watchdog functions.Addresses and data are transferred serially via a two-line, bidirectional I²C interface.The built-in address register is incremented automatically after each WRITE or

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.

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Published: Apr 6, 2007 |