3-WIRE REAL-TIME CLOCK
S-35190A
Rev.2.4_00
Characteristics (Typical Data)
(1) Standby current vs. VDD characteristics
(2) Current consumption when 32.768 kHz is output
vs. VDD characteristics
Ta = 25°C, CL = 6 pF
Ta = 25°C, CL = 6 pF
1.0
1.0
0.8
0.6
0.4
0.2
0
0.8
0.6
IDD1
IDD3
[µA]
[µA]
0.4
0.2
0
2
3
4
0
1
5
6
2
3
4
0
1
5
6
VDD [V]
VDD [V]
(3) Current consumption during operation vs. Input
clock characteristics
(4) Standby current vs. Temperature characteristics
Ta = 25°C, CL = 6 pF
CL = 6 pF
1.0
0.9
0.8
0.7
0.6
30
25
V
DD = 5.0 V
20
15
10
5
IDD2
IDD1
0.5
[µA]
[µA]
VDD = 3.0 V
VDD = 5.0 V
0.4
0.3
0.2
0.1
0
VDD = 3.0 V
0
0
25
Ta [°C]
50
0
200 400 600 800 1000
SCK frequency [kHz]
−40 −25
75 85
(5) Standby current vs. Cg characteristics
(6) Oscillation frequency vs. Cg characteristics
Ta = 25°C, CL = 6 pF
Ta = 25°C, CL = 6 pF
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
100
80
60
40
20
0
−20
−40
−60
−80
V
DD = 5.0 V
IDD1
[µA]
[ppm]
V
DD = 3.0 V
V
DD = 5.0 V
V
DD = 3.0 V
−100
0
2
4
6
8
10
0
2
4
6
8
10
Cg [pF]
Cg [pF]
40
Seiko Instruments Inc.
SII [ SEIKO INSTRUMENTS INC ]
