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M41T50

Serial Access Digital Input Real-Time Clock with Alarms

STMicroelectronics 

FEATURES SUMMARY

■ TIMEKEEPING DOWN TO 1.3V

■ 1.7V TO 3.6V I2C BUS OPERATING

VOLTAGE

■ OPERATES FROM 50Hz OR 60Hz DIGITAL

CLOCK SIGNAL

■ COUNTERS FOR SECONDS, MINUTES,

HOURS, DAY, DATE, MONTH, YEAR, AND

CENTURY

■ SERIAL INTERFACE SUPPORTS I2C BUS

(400kHz)

■ PROGRAMMABLE ALARM AND

INTERRUPT FUNCTION

■ 1Hz SQUARE WAVE OUTPUT

■ LOW OPERATING CURRENT OF 350µA

■ AUTOMATIC LEAP YEAR COMPENSATION

■ SOFTWARE PROGRAMMABLE OUTPUT

(OUT)

■ OPERATING TEMPERATURE OF –40 TO

85°C

■ LEAD-FREE 16-PIN QFN PACKAGE

M41T50

Serial Access Digital Input

Real-Time Clock with Alarms

PRELIMINARY DATA

Figure 1. Package

QFN16 (Q)

January 2005

1/23

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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