M41T80_06 Datasheet, PDF (1/25 Pages) STMicroelectronics – Serial access Real Time Clock with alarm

M41T80
Serial access Real Time Clock with alarm
Feature summary
■ Counters for tenths/hundredths of seconds,
seconds, minutes, hours, day, date, month,
year, and century
■ 32KHz crystal oscillator integrating load
capacitance (12.5pF) providing exceptional
oscillator stability and high crystal series
resistance operation
■ Serial interface supports I²C bus (400kHz)
■ 2.0 to 5.5V clock operating voltage
■ 32KHz square wave on power-up to drive a
microcontroller in low power mode
■ Programmable (1Hz to 32KHz) square wave
■ Programmable Alarm and Interrupt function
■ Low operating current of 200µA
■ Operating temperature of –40 to 85°C
■ ECOPACK® package available
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SO8 (M)
8-pin SOIC
August 2006
Rev 3
1/25
www.st.com
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