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DS1307 RTC Clock Module Specifications:

• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Clock Accuracy: ±2 ppm from 0°C to +40°C
• I2C Address: 0x68 (default), configurable for alternative addresses
• Battery Backup Voltage: 3V (CR2032 coin cell recommended)
• Dimensions: Compact form factor for easy integration into various electronic projects
• Communication Interface: I2C (Two-wire interface)