Typical operating characteristics, Ds1338 i, 3v, t – Rainbow Electronics DS1338 User Manual
Page 6
DS1338 I
2
C RTC with 56-Byte NV RAM
6 of 15
TYPICAL OPERATING CHARACTERISTICS
(V
CC
= 3.3V, T
A
=
+25°C, unless otherwise noted.)
OSCILLATOR FREQUENCY vs. V
BAT
DS1338 toc05
V
BAT
(V)
FREQUENCY (Hz)
5.3
4.8
3.8 4.3
2.3 2.8 3.3
1.8
32767.66
32767.67
32767.68
32767.69
32767.70
32767.71
32767.72
32767.73
32767.74
32767.75
32767.65
1.3
V
CC
= 0V
I
CCA
vs. V
CC
SQUARE-WAVE ON
DS1338 toc04
V
CC
(V)
SUPPLY CURRENT (
m
A)
5.3
4.8
3.8
4.3
2.8
3.3
2.3
75
100
125
150
175
200
225
250
275
50
1.8
I
BAT0SC1
vs. TEMPERATURE
V
BAT
= 3.0V
DS1338 toc03
TEMPERATURE ( C)
SUPPLY CURRENT (nA)
60
40
20
0
-20
750
800
850
700
-40
80
V
CC
= 0V
SUPPLY CURRENT (nA)
750
800
850
900
950
1000
1050
1100
1150
1200
1250
1300
1350
1400
700
I
BAT0SC2
vs. V
CC
SQUARE-WAVE ON
DS1338 toc02
V
BAT
(V)
4.8
4.3
1.8 2.3 2.8 3.3 3.8
1.3
5.3
V
CC
= 0V
I
BAT0SC1
vs. V
CC
SQUARE-WAVE OFF
DS1338 toc01
V
BAT
(V)
SUPPLY CURRENT (nA)
4.8
4.3
1.8 2.3 2.8 3.3 3.8
650
700
750
800
850
900
950
1000
600
1.3
5.3
V
CC
= 0V