s-35392a Seiko Instruments Inc., s-35392a Datasheet - Page 42

• Manufacturer Part Number: s-35392a
• Description: 2-wire Real-time Clock
• Manufacturer: Seiko Instruments Inc.

42
2-WIRE REAL-TIME CLOCK
S-35392A
(7) Oscillation frequency vs. Temperature
(9) Output current characteristics 1 (V
(11) BLD detection, release voltage, V
characteristics
Temperature characteristics
[ppm]
[mA]
BLD
I
OL1
∆f/f
[V]
−100
−120
−140
1.4
1.2
1.0
0.8
0.6
0.4
0.2
−20
−40
−60
−80
50
40
30
20
10
20
32KO pin,
− 40
0
0
0
−40
0
− 25
−25
INT
1
V
0
DD
0
2
V
= 5.0 V
Ta [ ° C]
V
pin, Ta = 25°C
Ta [°C]
OUT
DD
2
25
Detection voltage
25
= 3.0 V
[V]
Release voltage
C
V
L
DD
V
= 6 pF
DDT
DD
OUT
= 3.0 V
50
V
50
= 5.0 V
3
(Min) vs.
DDT
C
vs. I
g
Seiko Instruments Inc.
(Min)
= 7.5 pF
OL1
75 85
75 85
)
4
(8) Oscillation start time vs. C
(10) Output current characteristics 2 (V
[mA]
[ms]
I
t
OL2
STA
500
450
400
350
300
250
200
150
100
50
40
30
20
10
50
0
0
0
0
V
DD
0.5
2
= 5.0 V
SDA pin, Ta = 25 ° C
V
1
V
4
DD
g
C
OUT
characteristics
g
= 5.0 V
[pF]
V
[V]
DD
Ta = 25°C
1.5
6
= 3.0 V
V
DD
OUT
= 3.0 V
Rev.1.3
vs. I
8
2
OL2
2.5
10
)
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