Smart Module Series
SC262R_Series_Hardware_Design 31 / 115
RESET_N
225
DI
Reset the
module
Disabled by default
and can be enabled
via software
configuration.
VOL_UP
95
DI
Volume up
V
IL
max = 0.63 V
V
IH
min = 1.17 V
If it is not used,
keep it open.
Cannot be
externally pulled up.
1.8 V power
domain.
VOL_DOWN
96
DI
Volume down
V
IL
max = 0.63 V
V
IH
min = 1.17 V
If it is not used,
keep it open.
Cannot be
externally pulled up.
1.8 V power
domain.
Sensor I2C Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
SENSOR_I2C_
SCL
91
OD
I2C clock for
external sensor
Dedicated for
external sensors.
Cannot be used for
touch panel, NFC,
I2C keyboard, etc.
Externally pull them
up to 1.8 V.
SENSOR_I2C_
SDA
92
OD
I2C data for
external sensor
Charging Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
BAT_SNS
133
AI
Sensed battery
voltage for
charger circuits
The maximum input
voltage is 4.2 V.
BAT_THERM
134
AI
Battery
temperature
detect
Internally pulled up.
Supports 47
kΩ
NTC thermistor by
default - externally
connect it to the
47 kΩ NTC
thermistor.
If it is not used,
connect it to GND
with
a 47 kΩ
resistor.