ARDUINO Accessory, Module, RTC AT24C32 DS3231 I2C Precision Real Time Clock & Memory Module

Operating voltage: 3.3 - 5 .5 V Clock chip high-precision clock chip DS3231 Memory chip AT24C32 (storage capacity 32K) Size 38mm (length) * 22mm (W) * 14mm (height) Weight 5g Features: Accuracy ±2ppm from 0°C to +40°C Accuracy ±3.5ppm from -40°C to +85°C Battery Backup Input for Continuous Timekeeping Operating Temperature Ranges Commercial: 0°C to +70°C Industrial: -40°C to +85°C Low-Power Consumption Real-Time Clock Counts Seconds, Minutes,Hours, Day, Date, Month, and Year with Leap Year Compensation Valid Up to 2100 Two Time-of-Day Alarms Programmable Square-Wave Output Fast (400kHz) I2C Interface 3.3V Operation Digital Temp Sensor Output: ±3°C Accuracy Register for Aging Trim RST Input/Output Wiring (with Arduino UNO for example): SCL → A5 SDA → A4 VCC → 5V GND → GND