S-35192A Datasheet, PDF (35/41 Pages) Seiko Instruments Inc – 3-WIRE REAL-TIME CLOCK

Rev.1.2_00
3-WIRE REAL-TIME CLOCK
S-35192A
„ Characteristics (Typical Data)
(1) Standby current vs. V_DD characteristics
Ta = 25°C, C_L = 6 pF
1.0
0.8
0.6
I_DD1
[µA]
0.4
0.2
0
0 1234 5 6
V_DD [V]
(2) Current consumption vs. Input clock characteristics
Ta = 25°C, C_L = 6 pF
30
25
20
I_DD2
[µA]
15
10
V_DD = 5.0 V
V_DD = 3.0 V
5
0
0 200 400 600 800 1000
SCK frequency [kHz]
(3) Standby current vs. Temperature characteristics
C_L = 6 pF
1.0
0.9
0.8
0.7
V_DD = 5.0 V
0.6
I_{DD1 0.5}
[µA]
0.4
0.3
V_DD = 3.0 V
0.2
0.1
0
−40 −25 0 25 50
Ta [°C]
75 85
(4) Standby current vs. C_g characteristics
Ta = 25°C, C_L = 6 pF
1.0
0.9
0.8
0.7
0.6
I_{DD1 0.5}
[µA]
0.4
0.3
V_DD = 5.0 V
V_DD = 3.0 V
0.2
0.1
0
0
2
4
6
8 10
C_g [pF]
(5) Oscillation frequency vs. C_g characteristics
Ta = 25°C, C_L = 6 pF
100
80
60
40
20
∆f/f
[ppm] ⁰
−20
V_DD = 5.0 V
V_DD = 3.0 V
−40
−60
−80
−100
0
2
4
6
8 10
C_g [pF]
(6) Oscillation frequency vs. V_DD characteristics
Ta = 25°C, Cg = 7.5 pF
50
40
30
20
10
∆f/f
[ppm] ⁰
−10
−20
−30
−40
−50
01234 56
V_DD [V]
Seiko Instruments Inc.
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