Users Manual Part 1

SIM8260A_Hardware Design_V1.05
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3.2 Power On and Off Module
3.2.1 Power On
Drive the PWRKEY pin to a low level and hold it for 2 seconds, then release, the module will be powered
on. This pin is already pulled up internally. The power on timing and electrical characteristics are listed in
the following table, and the following figure shows the power on circuit.
Figure 10: Power on the module use button
Figure 11: Power on the module use GPIO drive
Table 13: Definition of PWRKEY pin
Pin name
Pin no.
Electrical
description
Description
Comment
PWRKEY
A45
DI
Power on/off the module,
active low