DS3231 3.3V/5V High Precision RTC Real Time Clock Module for Arduino Raspberry Pi

About this item

• ​Industrial-Grade Timing Accuracy​​: ±5ppm (±0.432 seconds/day) stability with temperature compensation (-40°C to +85°C range).
• ​​Dual-Voltage Compatibility​​: Operates at 3.3V or 5V (2.3V-5.5V range), no level shifter needed for Arduino/Raspberry Pi.
• ​​Complete Calendar Functions​​: Tracks seconds to years via 400kHz I²C, including leap year compensation until 2100.
• ​​Battery Backup Support​​: CR2032 socket maintains timing during power loss (1.3μA backup current; battery not included).