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Fermion DS3231 Precise RTC

SKU:

25-00016338

Part Number: DFR0819

CompanyDFRobot Part NumberDFR0819

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€11⁰⁰

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Description
Specifications

This real-time clock module (RTC) uses the DS3231 chip that integrates a crystal resonator and a temperature compensator, which improves the long-term accuracy of the module. In the range of -40°C to +85°C, the accuracy of DS3231 remains at ±3.5ppm (±0.3024 seconds/day).

The device incorporates a battery input, and maintains high precision timing when main power to the device is interrupted. The RTC provides information of seconds, minutes, hours, week, day, month and year, and it can automatically adjust the date at the end of the month, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. Two programmable time-of-day alarms and a programmable square-wave output are provided. In addition, the RST pin can be used as a push-button input for microprocessor reset.

NOTES

Due to the latest air cargo regulations, the transport audit of special items such as batteries, magnets and liquids will become very strict, so this RTC module does not come with batteries anymore. The button cell battery model that goes with the module is CR1220.

Power Supply Voltage: 3.3V-5.5V
I2C Address: 0x68
Timing Range: 1970 ~ 2100
Working Temperature: -40℃ ~ +85℃
Timing Accuracy: ±3.5ppm (±0.3024 seconds/day)
Product Size: 22.5x21mm