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