M41T60 datasheet(1/24 Pages) STMICROELECTRONICS

Teilenummer	M41T60

Bauteilbeschribung	Serial access real-time clock

PDF	24 Pages

Scroll/Zoom	100%

Hersteller	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 24 page

July 2006

Rev 11

1/24

24

M41T60

Serial access real-time clock

Features summary

■ Counters for seconds, minutes, hours, day,

date, month, years, and century

■ 32kHz crystal oscillator integrating load

capacitance and high crystal series resistance

operation

■ Oscillator stop detection monitors clock

operation

■ Serial interface supports I2C bus (400kHz)

■ 350nA timekeeping current @ 3V

■ Low operating current of 35µA (@400KHz)

■ Timekeeping down to 1.0V

■ 1.3V to 4.4V I2C bus operating voltage

■ Software clock calibration to compensate

deviation of crystal due to temperature

■ Software programmable output (OUT)

■ Operating temperature of –40 to 85°C

■ Automatic leap year compensation

■ Lead-free 16-pin QFN package

■ Li ION rechargeable operation

32KHz Crystal + QFN16 vs. VSOJ20

QFN16 (Q)

3mm x 3mm

1

XI

2

XO

3

4

AI11107

ST QFN16

SMT

CRYSTAL

VSOJ20 (47.6mm2)

Guard Ring

(21.5mm2)

GND Plane

www.st.com

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