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Sunsea AIoT SimCom SIM7090G User Manual page 16

Lpwa module

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2.2. Pin Description
Table 4: IO parameters definition
Pin type
Description
PI
Power input
PO
Power output
AI
Analog input
AIO
Analog input/output
I/O
Bidirectional input /output
DI
Digital input
DO
Digital output
DOH
Digital output with high level
DOL
Digital output with low level
PU
Pull up
PD
Pull down
OD
Open Drain
Table 5: Pin description
Pin
Pin name
No.
Power supply
VBAT
19,20
VDD_EXT
21
22,23,
24,25,
27,28,
30,31,
43,52,
53,54,
GND
55,56,
58,65,
66,73,
74,75,
84,85,
86,88,
89
System Control
PWRKEY
46
www.simcom.com
Default
Description
status
Power supply, voltage range:
PI
2.7V~4.8V.
LDO power output 1.8V for
PO
other external circuits with
Max 50mA current output.
Ground
System power on/off control
DI,PU
input, active low.
The efficient input low level
SIM7090G User Manual V1.01
Comment
This power supple only use
for external GPIO pulling up
or level shift circuit.
If unused, keep it open.
The level is 1.5V when this
PIN is floating;
16 / 77

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