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Ultra Accurate Real Time Clock Module DS3231

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The DS3231 module is a very accurate Real Time Clock module that when equipped with CR2032 battery can run for long periods of time.

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Description

The DS3231 is much more accurate than the DS1307 since the external temperature can affect the frequency of the oscillator circuit which drives the DS1307’s internal counter which will usually result with the clock being off by around five or so minutes per month. As the DS3231 has an internal oscillator which isn’t affected by external factors, thus, is accurate down to a few minutes per year at the most.

Along with keeping track of the time and date, the DS3231 also have a small EEPROM, an alarm function and the ability to generate a square-wave of various frequencies.

Ultra Accurate Real Time Clock Module DS3231 Specifications

  • Size: 38mm (length) * 22mm (W) * 14mm (height)
  • Weight: 8g
  • Operating voltage :3.3 – 5 .5 V
  • Clock chip: high-precision clock chip DS3231
  • Clock Accuracy :0-40 ℃ range, the accuracy 2ppm, the error was about 1 minute
  • Calendar alarm clock with two
  • Programmable square-wave output
  • Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation
  • Chip temperature sensor comes with an accuracy of 3 ℃
  • Memory chips: AT24C32 (storage capacity 32K)
  • Battery type: LIR2032 (not included )
  • IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V)
  • Can be cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57

Ultra Accurate Real Time Clock Module DS3231 Connection

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