Features
· 2.0 to 5.5 V clock operating voltage
· Counters for seconds, minutes, hours, day,
date, month, year, and century
· Software clock calibration
· Automatic switchover and deselect circuitry
(fixed reference)
· VCC = 2.7 to 5.5 V
2.5 V £ VPFD £ 2.7 V
· Serial interface supports I²C bus (400 kHz
protocol)
· Low operating current of 300 mA
· Oscillator stop detection
· Battery or SuperCapTM backup
· Operating temperature of - 40 to 85 °C
· Ultra-low battery supply current of 0.6 mA