DS3232M Просмотр технического описания (PDF) - Maxim Integrated
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DS3232M Datasheet PDF : 23 Pages
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DS3232M
±5ppm, I2C Real-Time Clock with SRAM
(TA = +25°C, unless otherwise noted.)
1Hz FREQUENCY ERROR
(MEASURED EVERY SECOND)
10
8
VCC = 3.3V,
TA = +25°C
6
4
2
0
-2
-4
-6
-8
-10
0
5 10 15 20 25 30
TIME (SECONDS)
1Hz FREQUENCY ERROR
(10s THERMAL UPDATES
MEASURED EVERY SECOND)
10
8
VBAT = 3.3V,
VCC = 0V,
6 TA = +25°C
4
2
0
-2
-4
-6
-8
-10
0
5 10 15 20 25 30
TIME (SECONDS)
Typical Operating Characteristics (continued)
1Hz FREQUENCY ERROR
(MEASURED EVERY SECOND)
10
8
VCC = 3.3V,
TA = +25°C
6
4
2
0
-2
-4
-6
-8
-10
0 5 10 15 20 25 30
TIME (MINUTES)
1Hz FREQUENCY ERROR
(1s THERMAL UPDATES
MEASURED EVERY SECOND)
10
8
VBAT = 3.3V,
VCC = 0V,
6 TA = +25°C
4
2
0
-2
-4
-6
-8
-10
0 5 10 15 20 25 30
TIME (SECONDS)
1Hz FREQUENCY ERROR
(DELTA FROM T0)
5
4
VCC = 3.3V,
TA = +25°C
3
2
1
0
-1
-2
-3
-4
-5
0 5 10 15 20 25 30
TIME (MINUTES)
TIMEKEEPING ACCURACY
vs. TEMPERATURE
50
DS3232M ACCURACY
0
-50
TYPICAL 20ppm
CRYSTAL,
-100
UNCOMPENSATED
-150
-200
-40 -20 0
20 40 60 80
TEMPERATURE (°C)
7
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