User's Manual

UE910 V2 Hardware User Guide
1VV0301065 Rev.1 – 2013-12-12
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved. Page 25 of 67
For example:
Let us assume you need to drive the HW_SHUTDOWN* pad with a totem pole output of a +3/5 V
microcontroller (uP_OUT2):
NOTE: In order to avoid a back powering effect it is recommended to avoid having any HIGH logic
level signal applied to the digital pins of the UE910 V2 when the module is powered OFF or during
an ON/OFF transition.