M41T63 datasheet(1/44 Pages) STMICROELECTRONICS

Part #	M41T63

Description	Serial real-time clocks (RTCs) with alarm

PDF	44 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

1 / 44 page

December 2011

Doc ID 10397 Rev 19

1/44

1

M41T62, M41T63

M41T64, M41T65

Serial real-time clocks (RTCs) with alarm

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 seconds register

■ 350 nA timekeeping current at 3 V

■ Timekeeping 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)

■ 32 KHz square wave output is on at power-up.

Suitable for driving a microcontroller in low-

power mode. Can be disabled.

(M41T62/63/64)

■ Programmable 1 Hz to 32 KHz square wave

output (M41T62/63/64)

■ Programmable alarm with interrupt function

(M41T62/65)

■ 32 KHz crystal oscillator integrates crystal load

capacitors, works with high series resistance

crystals

■ Oscillator stop detection monitors clock

operation

■ Accurate programmable watchdog

– 62.5 ms to 31 min timeout

■ Software clock calibration. Can adjust

timekeeping to within

±2 parts per million (±5

seconds per month)

■ Automatic leap year compensation

■ –40 to +85 °C operation

■ Two package options:

– Very small 3 mm x 3 mm, lead-free &

halogen-free (ECOPACK2®) 16-lead QFN

– Ultra-small 1.5 mm x 3.2 mm, lead-free &

halogen-free (ECOPACK2®) 8-pin ceramic

leadless chip carrier with embedded

32 KHz crystal - no external oscillator

components required (M41T62)

3mm

3.2 mm

1.5 mm

QFN16

3 mm x 3 mm

Embedded crystal LCC8

1.5 mm x 3.2 mm

No external components required

Table 1.

Device summary

Basic

RTC

Alarms

OSC fail

detect

Watchdog

timer

Calibration

SQW

output

IRQ

output

WDO

output

F32K

output

M41T62

✔✔

✔

M41T63(1)

✔✔

✔

M41T64

✔✔

✔

M41T65

✔✔

✔

1.

Contact local ST sales office for availability.

www.st.com

Similar Part No. - M41T63

Manufacturer	Part #	Datasheet	Description
STMicroelectronics	M41T63	670Kb / 33P	Serial Access Real-Time Clock with Alarms 13-Nov-2003
	M41T63	314Kb / 40P	Serial Access Real-Time Clock with Alarms 22-Aug-2006
	M41T63	695Kb / 41P	Serial real-time clocks with alarm 25-May-2010
	M41T63Q6F	314Kb / 40P	Serial Access Real-Time Clock with Alarms 22-Aug-2006
	M41T63Q6F	695Kb / 41P	Serial real-time clocks with alarm 25-May-2010

More results

Similar Description - M41T63

Manufacturer	Part #	Datasheet	Description
Maxim Integrated Produc...	AN632	355Kb / 8P	Evaluating the Accuracy of Maxim Real-Time Clocks (RTCs) Aug 01, 2001
Dallas Semiconductor	DS1305	487Kb / 21P	Serial Alarm Real-Time Clock
Dallas Semiconductor	DS1306	553Kb / 21P	Serial Alarm Real-Time Clock
Maxim Integrated Produc...	DS1306	324Kb / 22P	Serial Alarm Real-Time Clock Rev 12/09
STMicroelectronics	M41T62	695Kb / 41P	Serial real-time clocks with alarm 25-May-2010
	M41T80	440Kb / 27P	Serial access real-time clock with alarm 03-Aug-2011
	M41T62	706Kb / 42P	Low-power serial real-time clocks (RTCs) with alarm 05-Sep-2019
Maxim Integrated Produc...	DS1305	363Kb / 22P	Serial Alarm Real-Time Clock 19-5055; Rev 4 / 15
Maxim Integrated Produc...	DS1306	377Kb / 22P	Serial Alarm Real-Time Clock 19-5056; Rev 4 / 1 5
Renesas Technology Corp	IDT5P90011C	1,007Kb / 26P	Serial Alarm Real-Time Clock 2019

More results

M41T63 Datasheet(PDF) 1 Page - STMicroelectronics

M41T63 Datasheet(HTML) 1 Page - STMicroelectronics

Similar Part No. - M41T63

Similar Description - M41T63

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

Datasheet Download

Link URL