R2025S/D
Typical Characteristics
Test Circuit
VDD
Topt : 25°C
Output : Open
SCL, SDA pin : VDD or VSS
Frequency
32KOUT
Counter
CL
VSS
Timekeeping current vs. Supply Voltage
(with no 32-kHz clock output)
(Output=Open,Topt=25°C)
Timekeeping current vs. Supply Voltage
(with 32-kHz clock output)
(Output=Open,Topt=25°C)
1
0.8
0.6
0.4
0.2
0
10
9
8
CL=30pF
CL=0pF
7
6
5
4
3
2
1
0
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Supply Voltage VDD(v)
Supply Voltage VDD(v)
CPU Access Current vs. SCL Clock Frequency
(Output=Open, Topt=25°C)
Timekeeping current vs. Operating Temperature
(with no 32-kHz output)
(wiithout pull-up resister current)
(Output=Open, VDD=3V)
50
40
1
0.8
0.6
0.4
0.2
0
VDD=5v
30
20
10
0
VDD=3v
300
-60 -40 -20
0
20 40 60 80 10
0
0
100
200
400
SCL Clock Frequency (kHz)
Operating Temperature Topt(Celsius)
40
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