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FIBOCOM NL668-LA Series Hardware Guide
Page 14 of 61
Symbol
Description
IO
Input/Output
DI
Digital input
DO
Digital output
PI
Power input
PO
Power output
AI
Analog input
AO
Analog output
OD
Open drain
OC
Open collector
The pin function description of NL668-LA series module is shown as table 3-2:
Table 3-2 Pin function description
Pin No.
Pin Name
I/O Level
Description
1
WAKEUP_IN
I
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
External device wake-up module, low
active by default. with software
programmable option. Boot_config GPIO,
forbidden to pull-up externally.
2
AP_READY
I
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
Reserved
3
RESERVED
-
-
Reserved
4
W_DISABLE#
I
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
Module flight mode control. pull up by
default. Pull down this pin, module enter
airplane mode
5
NET_MODE
O
V
OL
max=0.45V
V
OH
min=1.35V
Module network state indicate (by
default), Boot_config GPIO, forbidden to
pull-up externally.
6
NET_STATUS
O
V
OL
max=0.45V
V
OH
min=1.35V
Module network state indicate
7
VDD_EXT
PO 1.8V
Module digital level, 1.8V output, 80mA
8
GND
G
-
Ground
9
GND
G
-
Ground
10
GND
G
-
Ground
