Smart Machine Smart Decision
SIM5320JE-TE_Hardware Design_V1.01
2012-07-10
25
3.2
Power on/off Time Sequence
3.2.1
Power on Sequence
SIM5320JE-TE can be powered on by POWER_ON pin, which starts normal operating mode.
POWER_ON pin is pulled up with a 200kR resistor to 1.8V in module. User can power on the
SIM5320JE-TE by pulling the POWER_ON pin down for a short time. The power-on scenarios are
illustrated in the following figures.
4.7K
47K
Turn on/ off impulse
POWER_ON
Power
on / off logic
200K
1.8V
MODULE
Figure
16
: Power on Timing Sequence
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