S-35199A01 Datasheet, PDF (48/54 Pages) Seiko Instruments Inc – 3-WIRE REAL-TIME CLOCK

3-WIRE REAL-TIME CLOCK
S-35199A01
Rev.1.0_00
„ Characteristics (Typical Data)
(1) Current consumption 1 (current consumption out of
communication) vs. V_DD characteristics
Ta = 25°C, C_L = 6 pF, C_g = 5.1 pF
1.0
(2) Current consumption 2 (current consumption when
32.768 kHz is output) vs. V_DD characteristics
Ta = 25°C, C_L = 6 pF, C_g = 5.1 pF
1.0
0.8
0.8
0.6
IDD1
[µA]
0.4
0.6
IDD2
[µA]
0.4
0.2
0.2
0
0123456
VDD [V]
0
0123456
VDD [V]
(3) Current consumption 3 (current consumption during
communication) vs. Input clock characteristics
Ta = 25°C, C_L = 6 pF, C_g = 5.1 pF
100
80
60
IDD3
[µA]
40
VDD = 5.0 V
20
0
0
VDD = 3.0 V
200 400 600 800 1000
SCK [kHz]
(4) Current consumption 1 (current consumption out
of communication) vs. Temperature characteristics
1.0
0.9
0.8
0.7
0.6
IDD1
[µA]
0.5
0.4
0.3
0.2
0.1
0
−40 −25
C_L = 6 pF, C_g = 5.1 pF
VDD = 5.0 V
VDD = 3.0 V
0 25 50
Ta [°C]
75 85
(5) Current consumption 1 (current consumption out of
communication) vs. C_g characteristics
Ta = 25°C, C_L = 6 pF
1.0
0.9
0.8
0.7
0.6
IDD1
[µA]
0.5
0.4
0.3
VDD = 5.0 V
VDD = 3.0 V
0.2
0.1
0
0
2
4
6
8 10
Cg [pF]
(6) Oscillation frequency vs. C_g characteristics
Ta = 25°C, C_L = 6 pF, C_g = 5.1 pF (reference)
60
40
20
∆f/f
[ppm]
0
−20
VDD = 5.0 V
VDD = 3.0 V
−40
−60
0 2 4 6 8 10
Cg [pF]
48
Seiko Instruments Inc.