SimCom SIM7000G, Руководство пользователя

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Smart Machine Smart Decision
SIM7000 _Hardware Design _V1.00
2017-05-23
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.
Default
status
Description Comment
Power supply
VBAT
55
、
56
、
57
PI
Power supply, voltage range:
3.0
～
4.3V.
VDD_EXT 15 PO
LDO power output 1.8V for
other external circuits with Max
50mA current output, such as
level shift circuit.
If unused, keep it
open.
GND
2
、
17
、
18
、
29
、
39
、
45
、
46
、
54
、
58
、
59
、
61
、
62
、
63
、
64
、
65
Ground
System Control
PWRKEY 1 DI,PU
System power on/off control
input, active low. The efficient
input level must be below 0.5V.
The level is 0.8V when
this PIN is floating;
NRESET 16 DI, PU
System reset control input,
active low.
NRESET has been
pulled up to 1.8V via
40Kohm resistor
internally.