Extremely Accurate I
2
C-Integrated
RTC/TCXO/Crystal
DS3231
Typical Operating Characteristics
(V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.)
STANDBY SUPPLY CURRENT
vs. SUPPLY VOLTAGE
DS3231 toc01
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
V
CC
= 0V
1.100
DS3231 toc02
150
RST ACTIVE
1.200
100
I
CCS
(µA)
I
BAT
(µA)
50
0.800
0
2.0
3.0
4.0
V
CC
(V)
5.0
1.000
0.900
0.700
2.0
3.0
4.0
V
BAT
(V)
5.0
SUPPLY CURRENT
vs. TEMPERATURE
DS3231 toc03
FREQUENCY DEVIATION vs.
TEMPERATURE vs. AGING VALUE
60
50
FREQUENCY DEVIATION (ppm)
40
30
20
10
0
-10
-20
-30
+25°C
-40°C
+85°C
+70°C
-128 -96
-64
-32
0
32
64
0°C
96
128
+85°C
-40°C
+70°C
0°C
+40°C
+25°C
+40°C
DS3231 toc04
1.000
V
BAT
= 3.0V
0.900
I
BAT
(µA)
0.800
0.700
0.600
-40.0 -20.0
-40
0.0
20.0
40.0
60.0
80.0
TEMPERATURE (°C)
CRYSTAL AGING REGISTER VALUE
_____________________________________________________________________
7
DALLAS [ DALLAS SEMICONDUCTOR ]
