・ Built in frequency adjusted 32.768 kHz crystal unit.
・ Interface Type : Serial interface in 3 lines form.
・ Operating voltage range : 1.6 V to 5.5 V
・ Wide timekeeper voltage range : 1.3 V to 5.5 V
・ Low backup current : 0.35
A / 3 V ( Typ. )
・ External event detection. : Chattering free input port ( 2 ports.)
(The various functions include full calendar, alarm, timer.)
Package size :
3.6 x 2.8 x 1.2t (mm)
Frequency tolerance
523 x 10-6*1
Operating temperature
-40 to +85
Power voltage
1.6 V to 5.5 V
Clock voltage
1.3 V to 5.5 V
*1:Equivalent to 60 seconds of monthly deviation (excluding offset.)
A / 3 V ( Typ. )
23 x 10-6 
to +85 
