Serial RTC SuperCap™ Calculator
for M41T56 (8-pin)

*Enter Vbat Max (V):

= [Vbase – Vt (bipolar)]

Vbat Min (V):

 2.5V

Vdelta (V):

*Capacitance(F):

Ibat Max:

 550nA

Ibat Typical:

 450nA

Using the formula dt = C (dV/i):

Time (Hours - Typical @ 25°C):

Time (Hours - Worst Case @ 25°C):

Typical Discharge Times with various SuperCap values:

0.022F:

0.047F:

0.100F:

0.220F:

0.330F:

AN922, "Using a SuperCap..."