- Chip :DS1302
- Operating Voltage Range :2.0V to 5.5VTTL-Compatible VCC :5VFormat :24hours/ 12 hoursWorking Temperature :0°C to 70°CCrystal Oscillator :32.768KHzPositioning Holes :4Positioning Holes (Diameter) :3.1mmBattery Included :YesSize :44mm x 24mm