RTC

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General Information

[RTC Battery Schematics] 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