Real Time Clock DS3231 Module


Out of stock


RTC stands for real time clock folks. The DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC) with an integrated temperaturecompensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, and maintains
accurate timekeeping when main power to the device is interrupted.

The RTC maintains seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with an AM/PM indicator. Two programmable time-of-day alarms and a programmable square-wave output are
provided. Address and data are transferred serially through an I2C bidirectional bus. A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, to provide a reset output, and to automatically switch to the backup supply when necessary. Additionally, the RST pin is monitored as a pushbutton input for generating a μP reset.


Out of stock

The DS3231 is a low-cost, highly accurate Real Time Clock which can maintain hours, minutes and seconds, as well as, day, month and year information. Also, it has automatic compensation for leap-years and for months with fewer than 31 days.

The module can work on either 3.3 or 5 V which makes it suitable for many development platforms or microcontrollers. The battery input is 3V and a typical CR2032 3V battery can power the module and maintain the information for more than a year.

The module uses the I2C Communication Protocol which makes the connection to the Arduino Board very easy.

Highly Accurate RTC Completely Manages All Timekeeping Functions.

  • Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year, with Leap-Year Compensation Valid Up to 2100.
  • Accuracy ±2ppm from 0°C to +40°C
  • Accuracy ±3.5ppm from -40°C to +85°C • Digital Temp Sensor Output: ±3°C Accuracy.
  • Register for Aging Trim.
  • RST Output/Pushbutton Reset Denounce Input.
  • Two Time-of-Day Alarms.
  • Programmable Square-Wave Output Signal.

Simple Serial Interface Connects to Most Microcontrollers.

  • Fast (400kHz) I2C Interface.

Battery-Backup Input for Continuous Timekeeping.

  • Low Power Operation Extends Battery-Backup Run Time.
  • 3V Operation.
SKU: NA06 Categories: ,

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