Table 9: Power On Timing - SIM Tech SIMCom SIM5360 Hardware Design

Turn on / off
VBAT
PWRKEY
(Input)
NETLIGHT/GPIO1
(Output)
VDD_EXT
(Output)
UART Port
USB Port

Table 9: Power on timing

Symbol
Ton The time to pull PWRKEY down to power on
TpD+ The time to indicate connecting with the network
The time to indicate the module is powered on
Tpw+
completely
Tuart The time to enable UART
Tusb The time to enable USB
Note: Module could be automatically power on by connecting PWRKEY pin to Low level directly.
SIM5360_Hardware Design_V1.06
4.7K
47K
impulse
V IL <0.3V
Figure 15: Power on Timing Sequence
Parameter
1.8V
200K
PWRKEY
On / off logic
MODULE
V IH > 1.6V
Ton
Tpd+
Tpw+
Tuart
Undefined
Tusb
Undefined
Min.
180
28
Smart Machine Smart Decision
Power
Active
Active
Time value
Unit
Typ. Max.
500 - ms
- - 5 s
- 0.5
- s
- - 8 s
- - 10 s
2016-11-17