General Information
A real-time clock (RTC) is a computer clock that keeps track of the current time. The RTC circuitry is integrated into the HummingBoard Professional and the Cubox-i uses a CR1620 sized Lithium/Manganese Dioxide (LiMnO²) Coin Cell.
This coin cell should be the only part to connect to the header provided on the device to power this circuit.
General Requirement
Operation Temperature Range: -20°C to +70°C
Storage Temperature Range: 0°C to +30°C
Storage Humidity: 40 ~ 75%
Weight: 1,3g
Materials of Positive Terminal: SUS430+NI-palted
Materials of Negative Terminal: SUS430+NI-palted.
Electrical Requirement
[RTC Circuit Schematic]
Nominal Voltage: 3V
Nominal Capacity: 70mAh (under Load 30kO Load and 2.0V End-voltage)
Load Resistance: 30kO
Standard Discharge Current: 0.2 mA