DS3231 RTC I2C Clock Memory Module


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SKU: MYP-JHS-107 Category:

The DS3231 is a low-cost, highly accurate clock that uses I2C communication. It has a built-in temperature-compensated crystal oscillator (TCXO) and crystal. This clock can run on a battery when the main power is off and still maintain precise timekeeping.

The DS3231 comes in different temperature ranges and packaging options. It keeps track of seconds, minutes, hours, days, dates, months, and years, adjusting for months with fewer than 31 days and leap years. It can display time in either 24-hour or 12-hour format with AM/PM indicators.

You can set two alarms, and it can generate a square-wave signal. It uses I2C to communicate. The clock also has a feature to monitor power status, trigger a reset, and switch to a backup power source when needed. It can also respond to an external reset signal.



  • Battery Backup Input for Continuous Timekeeping
  • Operating Temperature Ranges: Commercial: 0°C to +70°C/ Industrial: -40°C to +85°C Low-Power Consumption
  • Real-Time Clock Counts Seconds, Minutes, Hours, Days, Dates, Months, and YearsA with Leap Year Compensation Valid Up to 2100
  • Two Time-of-Day Alarms
  • Programmable Square-Wave Output
  • Fast (400kHz) I2C Interface
  • 3.3V Operation
  • Digital Temp Sensor Output: ±3°C Accuracy
  • Register for Aging Trim
  • RST Input/Output
  • UL Recognized
  • Battery included



1 x DS3231 RTC I2C Clock Memory Module



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