DS3231M 데이터 시트보기 (PDF) - Maxim Integrated
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DS3231M Datasheet PDF : 20 Pages
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±5ppm, I2C Real-Time Clock
(TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
POWER-SUPPLY CURRENT
vs. POWER-SUPPLY VOLTAGE
150
VBAT = 2.3V, EN32KHZ = 1, IOUT = 0mA
140
130
+85°C
120
110
100
90
80
70
60
50
2
+25°C
-40°C
INCREASE BELOW VPF
DUE TO INTERNAL PULLUP
RESISTOR ON RST
3
4
5
6
SUPPLY VOLTAGE (V)
BATTERY-SUPPLY CURRENT
vs. BATTERY-SUPPLY VOLTAGE
4.0
VCC = 0V, EN32KHZ = 1, BBSQW = 0
3.5
+85°C
3.0
2.5
+25°C
2.0
1.5
-40°C
1.0
2
3
4
5
6
SUPPLY VOLTAGE (V)
INT/SQW OUTPUT VOLTAGE
vs. OUTPUT CURRENT
0.5
VCC = 2.3V,
VBAT = 0V,
0.4 TA = +25°C
0.3
0.2
0.1
RST OUTPUT VOLTAGE
vs. OUTPUT CURRENT
0.5
VCC = 2.45V,
VBAT = 3.0V,
0.4 TA = +25°C
0.3
0.2
0.1
RST OUTPUT VOLTAGE
vs. POWER SUPPLY VOLTAGE
6
VBAT = 3.0V,
TA = +25°C
5
4
3
TRACKS WITH VCC
2
1
0
0
0
0
2
4
6
8
10
0
1
2
3
4
5
0
2
4
6
OUTPUT CURRENT (mA)
OUTPUT CURRENT (mA)
SUPPLY VOLTAGE (V)
FREQUENCY ERROR
vs. TEMPERATURE
10
VCC = 3.3V
8
6
4
2
0
-2
-4
-6
-8
-10
-50
0
50
TEMPERATURE (°C)
LIMITS
100
POWER-SUPPLY CURRENT
vs. SCL FREQUENCY
200
190 TA = +25°C
180
170
160
+5.5V
150
140
130
120
110
+2.7V
100
+3.5V
90
80
0
100
200
300
400
SCL FREQUENCY (kHz)
6
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