Smart Module Series
SC200L_Series(Dual-band Wi-Fi)_Hardware_Design 30 / 111
BAT_SNS
133
AI
Battery voltage
detect
The maximum input
voltage is 4.50 V.
CS_M
183
AI
Fuel gauge
detect (-)
If fuel gauge is not used,
connect these pins to
ground.
CS_P
184
AI
Fuel gauge
detect (+)
BAT_THERM
134
AI
Battery
temperature
detect
Externally pull this pin up
to LDO1_1V85 with a
47 kΩ resistor.
Supports 10 k
Ω NTC
thermistor by default -
connect this pin to the
10 k
Ω NTC thermistor.
If unused, connect it to
GND with a 10 k
Ω
resistor.
BAT_ID
185
AI
Battery type
detect
Input voltage: 0
–1.2 V.
If not used, keep it open.
Antenna Interfaces
Pin Name
Pin
No.
I/O
Description
DC Characteristics
Comment
ANT_MAIN
87
AIO
Main antenna
interface
50
Ω impedance.
ANT_DRX
131
AI
Rx-diversity
antenna interface
ANT_GNSS
121
AI
GNSS antenna
interface
ANT_WIFI/BT
77
AIO
Wi-Fi/Bluetooth
antenna interface
GPIO Interfaces
Pin Name
Pin
No.
I/O
Description
DC Characteristics
Comment
GPIO_87
33
DIO
General-purpose
input/output
V
IL
max = 0.48 V
V
IH
min = 1.39 V
V
OL
max = 0.20 V
V
OH
min = 1.46 V
GPIO_86
90
DIO
General-purpose
input/output
GPIO_85
97
DIO
General-purpose
input/output
GPIO_88
98
DIO
General-purpose
input/output