Coin Cell Connector - Digi ConnectCore 6UL Hardware Reference Manual

Interfaces

Coin cell connector

The ConnectCore 6UL SBC Express can be assembled with a 2-pin, 1.25 mm pitch straight connector
that powers the real-time clock (RTC) interface with an external coin cell or supercapacitor when the
main supply is off. When the main power supply rail is connected, it powers the RTC. You can supply
the RTC with a primary Lithium cell (non-rechargeable), a secondary Lithium cell (rechargeable), or a
supercap.
Note The voltage range of the coin cell supply must be between 1.8 - 3.3 V.
The following table shows the pinout of the coin cell connector:
Pin Signal name Description
1 VCC_LICELL
2 GND
Note J13 Coin cell connector manufacturing part number: MOLEX 53047-0210
ConnectCore 6UL SBC Express Hardware Reference Manual
Power supply for RTC
Coin cell connector
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