s-35190a Seiko Instruments Inc., s-35190a Datasheet - Page 40

• Manufacturer Part Number: s-35190a
• Description: 3-wire Real-time Clock
• Manufacturer: Seiko Instruments Inc.

40
3-WIRE REAL-TIME CLOCK
S-35190A
Characteristics (Typical Data)
(1) Standby current vs. V
(3) Current consumption during operation vs. Input
(5) Standby current vs. C
[µA]
clock characteristics
[µA]
[µA]
I
I
I
DD1
DD2
DD1
1.0
0.8
0.6
0.4
0.2
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
30
25
20
15
10
0
5
0
0
0
0
0
200
SCK frequency [kHz]
1
2
V
Ta = 25 ° C, C
Ta = 25 ° C, C
Ta = 25 ° C, C
2
DD
V
DD
g
400
4
DD
characteristics
V
C
= 3.0 V
characteristics
V
DD
g
= 5.0 V
DD
3
[pF]
V
[V]
DD
600
= 5.0 V
6
= 3.0 V
L
L
L
4
= 6 pF
= 6 pF
= 6 pF
800 1000
8
5
Seiko Instruments Inc.
10
6
(2) Current consumption when 32.768 kHz is output
(4) Standby current vs. Temperature characteristics
(6) Oscillation frequency vs. C
[ppm]
vs. V
[µA]
[µA]
I
I
∆f/f
DD3
DD1
−100
DD
100
−20
−40
−60
−80
1.0
0.8
0.6
0.4
0.2
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
80
60
40
20
characteristics
0
0
0
−40
0
0
−25
1
2
V
DD
Ta = 25 ° C, C
Ta = 25 ° C, C
0
2
= 3.0 V
4
V
Ta [°C]
C
DD
g
g
3
25
V
[pF]
characteristics
[V]
V
DD
DD
6
C
= 5.0 V
L
V
L
= 5.0 V
L
4
= 6 pF
= 6 pF
= 6 pF
DD
50
= 3.0 V
8
5
Rev.2.4
75 85
10
6
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