3-WIRE REAL-TIME CLOCK
S-35190A
Rev.2.4_00
(7) Oscillation frequency vs. VDD characteristics
Ta 25 C, C 7.5 pF
(8) Oscillation frequency vs. Temperature
characteristics
=
°
=
Cg = 7.5 pF
DD = 5.0 V
g
20
0
50
40
30
V
−20
−40
20
VDD = 3.0 V
10
0
−60
[ppm]
[ppm]
−10
−20
−30
−40
−50
−80
−100
−120
−140
0
2
3
4
−40 −25
7585
1
5
6
0
25
Ta [°C]
50
V
DD [V]
(9) Oscillation start time vs. Cg characteristics
(10) Output current characteristics 1 (VOUT vs. IOL1
pin, Ta 25 C
)
Ta = 25°C
=
°
INT
50
40
30
20
10
0
500
450
400
350
V
DD = 5.0 V
300
tSTA
IOL1
250
200
150
100
50
V
DD = 5.0 V
[ms]
[mA]
VDD = 3.0 V
VDD = 3.0 V
0
8
10
0
2
4
6
0
1
2
3
4
Cg [pF]
VOUT [V]
(11) Output current characteristics 2 (VOUT vs. IOL2
SIO pin, Ta 25 C
)
(12) CS pin input current characteristics
=
°
CS pin, Ta = 25°C
50
40
30
20
10
0
800
700
V
DD = 5.0 V
600
500
IH 400
V
DD = 5.0 V
IOL2
I
[mA]
[µA]
300
200
100
0
V
DD = 3.0 V
VDD = 3.0 V
2
3
4
0
0.5
1
1.5
OUT [V]
2
2.5
0
1
5
6
V
VIN [V]
Seiko Instruments Inc.
41
SII [ SEIKO INSTRUMENTS INC ]
