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DS3232M_V1 数据表(PDF) 7 Page - Maxim Integrated Products |
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DS3232M_V1 数据表(HTML) 7 Page - Maxim Integrated Products |
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7 / 23 page ![]() DS3232M ±5ppm, I2C Real-Time Clock with SRAM 7 Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) 1Hz FREQUENCY ERROR (MEASURED EVERY SECOND) TIME (SECONDS) -8 -6 -4 -2 0 2 4 6 8 10 -10 030 25 20 15 10 5 VCC = 3.3V, TA = +25°C 1Hz FREQUENCY ERROR (MEASURED EVERY SECOND) TIME (MINUTES) -8 -6 -4 -2 0 2 4 6 8 10 -10 030 25 20 15 10 5 VCC = 3.3V, TA = +25°C 1Hz FREQUENCY ERROR (DELTA FROM T0) TIME (MINUTES) 030 25 20 15 10 5 VCC = 3.3V, TA = +25°C -4 -3 -2 -1 0 1 2 3 4 5 -5 1Hz FREQUENCY ERROR (10s THERMAL UPDATES MEASURED EVERY SECOND) TIME (SECONDS) -8 -6 -4 -2 0 2 4 6 8 10 -10 030 25 20 15 10 5 VBAT = 3.3V, VCC = 0V, TA = +25°C 1Hz FREQUENCY ERROR (1s THERMAL UPDATES MEASURED EVERY SECOND) TIME (SECONDS) -8 -6 -4 -2 0 2 4 6 8 10 -10 030 25 20 15 10 5 VBAT = 3.3V, VCC = 0V, TA = +25°C TIMEKEEPING ACCURACY vs. TEMPERATURE TEMPERATURE (°C) 80 60 40 20 0 -20 -150 -100 -50 0 50 -200 -40 TYPICAL 20ppm CRYSTAL, UNCOMPENSATED DS3232M ACCURACY |
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