Precision Real Time Clock Module RTC Mini DS3231 for Raspberry Pi

This is a Mini Real-Time Clock module, it design for Raspberry Pi, but it also can be used to Arduino.

Plugin it into Raspberry Pi GPIO interface, and all is ok. This is the easiest way to keep it in time.

Features

• Compatible Raspberry Pi A +, B, B + / 2
• Works in 3, 3V or 5V
• 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
  • Active-Low RST Output/Pushbutton Reset Debounce Input
  • Two Time-of-Day Alarms
  • Programmable Square-Wave Output Signal
• Can be connected directly to the microcontroller output IO port
• Anti-interference ability

Specifications

• Clock chip: High-precision clock chip DS3231
• Memory chips: AT24C32 (storage capacity 32K)
• Operating voltage: 3.3 - 5.5V DC
• Clock Accuracy: 0~40 range, the accuracy 2ppm, the error is about 1 minute; With two calendar alarm clock; Programmable square-wave output
• Real time clock generator seconds, minutes, hours, day, date, month and year timing and provides valid until 2100 with Leap Year Compensation
• Chip temperature sensor accuracy: +/- 3ºC
• 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
• Suggest to add a rechargeable battery CR2032 to ensure the clock move normal as system power failure
• Size: 14 x 14 x 12 mm

Package Content

• 1x RTC Module