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DS3231S Datasheet(PDF) 3 Page - Maxim Integrated Products |
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DS3231S Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 20 page Extremely Accurate I2C-Integrated RTC/TCXO/Crystal _____________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VCC = 2.3V to 5.5V, VCC = Active Supply (see Table 1), TA = TMIN to TMAX, unless otherwise noted.) (Typical values are at VCC = 3.3V, VBAT = 3.0V, and TA = +25°C, unless otherwise noted.) (Notes 1, 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Output Frequency fOUT VCC = 3.3V or VBAT = 3.3V 32.768 kHz 0°C to +40°C ±2 Frequency Stability vs. Temperature (Commercial) f/fOUT VCC = 3.3V or VBAT = 3.3V, aging offset = 00h >40°C to +70°C ±3.5 ppm -40°C to <0°C ±3.5 0°C to +40°C ±2 Frequency Stability vs. Temperature (Industrial) f/fOUT VCC = 3.3V or VBAT = 3.3V, aging offset = 00h >40°C to +85°C ±3.5 ppm Frequency Stability vs. Voltage f/V 1 ppm/V -40°C 0.7 +25°C 0.1 +70°C 0.4 Trim Register Frequency Sensitivity per LSB f/LSB Specified at: +85°C 0.8 ppm Temperature Accuracy Temp VCC = 3.3V or VBAT = 3.3V -3 +3 °C First year ±1.0 Crystal Aging f/fO After reflow, not production tested 0–10 years ±5.0 ppm ELECTRICAL CHARACTERISTICS (VCC = 0V, VBAT = 2.3V to 5.5V, TA = TMIN to TMAX, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS VBAT = 3.63V 70 Active Battery Current IBATA EOSC = 0, BBSQW = 0, SCL = 400kHz (Note 4) VBAT = 5.5V 150 μA VBAT = 3.63V 0.84 3.0 Timekeeping Battery Current IBATT EOSC = 0, BBSQW = 0, EN32kHz = 1, SCL = SDA = 0V or SCL = SDA = VBAT (Note 4) VBAT = 5.5V 1.0 3.5 μA VBAT = 3.63V 575 Temperature Conversion Current IBATTC EOSC = 0, BBSQW = 0, SCL = SDA = 0V or SCL = SDA = VBAT VBAT = 5.5V 650 μA Data-Retention Current IBATTDR EOSC = 1, SCL = SDA = 0V, +25°C 100 nA |
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