Pin Description - SimCom SIM7000G User Manual

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
Table 5: Pin description
Pin name Pin No.
Power supply
55、56、
VBAT
57
VDD_EXT 15
2、17、
18、29、
39、45、
46、54、
GND
58、59、
61、62、
63、64、
65
System Control
PWRKEY 1
NRESET 16
SIM7000 _Hardware Design _V1.00
Default
Description
status
Power supply, voltage range:
PI
3.0～4.3V.
LDO power output 1.8V for
other external circuits with Max
PO
50mA current output, such as
level shift circuit.
Ground
System power on/off control
DI,PU input, active low. The efficient
input level must be below 0.5V.
System reset control input,
DI, PU
active low.
Smart Machine Smart Decision
Comment
If unused, keep it
open.
The level is 0.8V when
this PIN is floating;
NRESET has been
pulled up to 1.8V via
40Kohm resistor
internally.
2017-05-23