Features

· Counters for seconds, minutes, hours, day,

date, month, years and century

· 32 kHz crystal oscillator integrating load

capacitance (12.5 pF) providing exceptional

oscillator stability and high crystal series

resistance operation

· Serial interface supports I²C bus (100 kHz

protocol)

· Ultra-low battery supply current of 0.8 μA (typ.

at 3 V)

· 2.0 to 5.5 V clock operating voltage

· Automatic switchover and deselect circuitry

· 56 bytes of general purpose RAM

· Software clock calibration to compensate

crystal deviation due to temperature

· Automatic leap year compensation

· Operating temperature of – 40 to 85°C

· Packaging includes a 28-lead SOIC and

SNAPHAT® top (to be ordered separately;

3.3 V to 5.0 V supply voltage only)

· RoHS compliant

– Lead-free second level interconnect