M41T50 Datasheet, PDF (1/23 Pages) STMicroelectronics – Serial Access Digital Input Real-Time Clock with Alarms

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.