DS3231 Maxim, DS3231 Datasheet - Page 7

• Manufacturer Part Number: DS3231
• Description: The DS3231 is a low-cost, extremely accurate I²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal
• Manufacturer: Maxim

(V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.)
150
125
100
1.0
0.9
0.8
0.7
0.6
75
50
25
0
-40
2.0
BSY = 0, SCL = SDA = V
V
SDA = SCL = V
CC
2.5
= 0, EN32kHz = 1, BSY = 0,
STANDBY SUPPLY CURRENT
-15
vs. SUPPLY VOLTAGE
3.0
vs. TEMPERATURE
SUPPLY CURRENT
Extremely Accurate I
TEMPERATURE (°C)
BAT
RST ACTIVE
10
3.5
OR GND
V
CC
CC
_____________________________________________________________________
(V)
4.0
35
-100
-120
-140
-160
-180
-200
-20
-40
-60
-80
20
0
4.5
-40
CRYSTAL
60
+20ppm
-30 -20
5.0
DELTA TIME AND FREQUENCY
CRYSTAL
-20ppm
-10 0 10 20 30 40
5.5
85
vs. TEMPERATURE
TEMPERATURE (°C)
TYPICAL CRYSTAL,
UNCOMPENSATED
Typical Operating Characteristics
ACCURACY
DS3231
BAND
50 60
-10
-20
-30
-40
1.2
1.1
1.0
0.9
0.8
0.7
0.6
60
50
40
30
20
10
DS3231 toc05
0
70
-40
2.3
80
vs. TEMPERATURE vs. AGING VALUE
V
SDA = SCL = V
RTC/TCXO/Crystal
CC
0
-20
-40
-60
-80
-100
= 0V, BSY = 0,
-15
FREQUENCY DEVIATION
vs. SUPPLY VOLTAGE
EN32kHz = 1
SUPPLY CURRENT
127
3.3
TEMPERATURE (°C)
BAT
10
OR V
V
2
BAT
32
CC
(V)
C-Integrated
EN32kHz = 0
35
4.3
-33
0
60
8
5.3
85
7