DS1337 I
2C Serial Real-Time Clock
Note 16:
The parameter tOSF is the period of time that the oscillator must be stopped for the OSF bit to be set over the
voltage range of VCC(MIN) ≤ VCC ≤ VCC(MAX)..
TYPICAL OPERATING CHARACTERISTICS
(VCC = 3.3V, TA = +25°C, unless otherwise noted.)
ICCA vs. VCC
0
25
50
75
100
125
1.8
2.3
2.8
3.3
3.8
4.3
4.8
5.3
VCC (V)
ICC
(u
A)
ICC vs. VCC
300
400
500
600
700
800
900
1000
1.3 1.8
2.3 2.8 3.3
3.8 4.3
4.8 5.3
VCC (V)
ICC
(n
A)
INTCN = 0
(Squarew ave on)
INTCN = 1
(Squarew ave off)
I
CCTOSC
I
CCS
ICCS vs. Temperature
350
400
450
500
550
600
650
700
-40.0
-20.0
0.0
20.0
40.0
60.0
80.0
VCC (V)
ICC
(n
A)
INTCN = 0
(Squarew ave on)
V
CC = 3.0V
INTCN = 1
(Squarew ave off)
OSCILLATOR FREQUENCY vs. VCC
32768
32768.05
32768.1
32768.15
32768.2
32768.25
32768.3
32768.35
1.3 1.8 2.3 2.8 3.3 3.8 4.3 4.8
VCC (V)
FREQUENCY
(Hz)
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