S-35390A Seiko Instruments, S-35390A Datasheet - Page 38

• Manufacturer Part Number: S-35390A
• Description: 2-Wire Real Time Clock
• Manufacturer: Seiko Instruments

(7) Oscillation frequency vs. V
(9) Oscillation start time vs. C
(11) Output current characteristics 2 (V
38
2-WIRE REAL-TIME CLOCK
S-35390A
[ppm]
[mA]
[ms]
I
OL2
t
∆f/f
STA
500
450
400
350
300
250
200
150
100
−10
−20
−30
−40
−50
50
40
30
20
10
50
50
40
30
20
10
0
0
0
0
0
0
V
DD
0.5
1
2
= 5.0 V
2
Ta = 25°C, C
V
V
1
4
SDA pin, Ta = 25°C
C
DD
V
OUT
DD
g
g
V
= 5.0 V
DD
3
[pF]
characteristics
DD
[V]
[V]
1.5
characteristics
6
= 3.0 V
V
4
DD
Ta = 25°C
g
= 3.0 V
= 7.5 pF
2
OUT
8
5
Seiko Instruments Inc.
vs. I
2.5
10
6
OL2
)
(8) Oscillation frequency vs. Temperature
(10) Output current characteristics 1 (V
(12) BLD detection, release voltage,
[ppm]
characteristics
[mA]
BLD
V
I
[V]
∆f/f
OL1
DDTm
−100
−120
−140
−20
−40
−60
−80
1.4
1.2
1.0
0.8
0.6
0.4
0.2
50
40
30
20
10
20
vs. Temperature characteristics
0
0
0
−40
−40
0
−25
−25
INT1 pin, INT2 pin, Ta = 25°C
1
V
0
DD
0
Ta = 25°C, C
V
= 5.0 V
V
Ta [°C]
Ta [°C]
OUT
Detection voltage
DD
Release voltage
2
25
25
= 3.0 V
V
[V]
DD
V
DD
= 3.0 V
50
50
C
g
= 5.0 V
3
L
= 7.5 pF
V
Rev.1.2
= 6 pF
DDTm
OUT
75 85
75 85
vs. I
4
_00
OL1
)