Smart Module Series
SC206E_Series_Hardware_Design 33 / 115
(+)
BAT_M
183
AI
Battery voltage detect (-)
BAT_ID
185
AI
Battery type detect
V
I
min = 0 V
V
I
max = 1.875 V
Internally pulled down
with a
100 kΩ resistor. If
unused, keep it open.
BAT_THERM
134
AI
Battery temperature
detect
Internally pull up by
default.
Supports
47 kΩ NTC
thermistor by default.
If unused, connect it to
GND with a
47 kΩ
resistor.
Vibration Motor Driver Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
VIB_DRV_P
28
PO
Vibration motor driver
output control
V
O
min = 1.5 V
V
O
max = 3.3 V
I
O
max = 100 mA
Connect it to the positive
pole of the motor.
Other Interfaces
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
USB_BOOT
46
DI
Force the module into
emergency download
mode
Force the module to
enter emergency
download mode by
pulling this pin up to
LDO15A_1V8 when the
module is turning on.
GNSS_LNA_EN
194
DO
GNSS LNA enable
control
NFC_CLK
181
DO
NFC clock
The default output
frequency is 38.4 MHz.
CBL_PWR_N
186
DI
Initiate power-on when
grounded
The module cannot be
turned off when this pin
is pulled down. If
unused, keep it open.
GPIO Interfaces
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
GPIO_28
33
DIO
General-purpose
input/output
GPIO_31
97
DIO
General-purpose
input/output
GPIO_32
99
DIO
General-purpose