Users Manual

ME910C1 HW User Guide
1VV0301351 Rev.13 Page 35 of 106 2020-06-30
VAUX Power Output
A regulated power supply output is provided in order to supply small devices from the
module, like: level translators, audio codec, sensors, and others.
Pin R11 can be used also as PWRMON (module powered ON indication) function,
because is always active when the module is powered ON and cannot be set to LOW
level by any AT command.
Host can only detect deep sleep mode by monitoring of VAUX/PWRMON output pin, since
there is no pin dedicated to PSM status indicator,
The operating range characteristics of the supply are:
Item Min Typical Max
Output voltage 1.78V 1.80V 1.82V
Output current - - 60mA
Output bypass capacitor
(inside the module)
1uF
RTC Supply
RTC is functional when ME910C1 is in PSM state and VBATT pin is supplied.
RTC settings are erased if VBATT supply is temporary disconnected.
If PSM is enabled by AT+CPSMS
Command, VAUX during deep sleep mode period is OFF