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Reb-1315lp operational manual – RoyalTek REB-1315LP User Manual

Page 17

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RoyalTek Confidential

17

REB-1315LP Operational Manual

V_RTC_3V3 (Backup battery )

This is the battery backup input that powers the SRAM and RTC (Real Time Clock) when

main power is removed. Typical current draw is 10uA.

The supply voltage should be between 2.5V and 3.6V.

ON_OFF (GPS Sleep Mode)

This pin is triggered soft on/off request. Please shall only used to wake up chip. Control for

hibernate.

Please let it N.C.

GPIO Functions

Several I/Os are connected to the digital interface connector for custom applications.