Description: 100% brand new and high quality. DS3231 precision RTC clock memory module for Arduino Raspberry Pi. Low-cost, extremely accurate I2C real-time clock(RTC), with an integrated temperature-compensated crystal oscillator(TCXO) and crystal. ±3? accuracy digital temperature sensor. Two calendar alarm. Complete clock calendar functions and provide valid until the year 2100 leap year compensation. Specification: Size: 38 x 22 x 14mm/1.5 x 0.9 x 0.6inch Timing accuracy: ± 2ppm, the error was about 1 minute per year Operating voltage: +3.3V to +5.5V Temperature range: 0 ? to +40 ? Clock chip: DS3231 Memory chips: AT24C32 (storage capacity 32K) Battery: CR2032 (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 SDA ? A4 VCC ? 5V GND ? GND Package Includes: 1 Piece DS3231 Real Time Clock Module
