Smart LTE Module Series
SC650T Hardware Design
SC650T_Hardware_Design 34 / 131
depth camera
V
OH
min=1.35V
DCAM_
PWDN
181
DO
Power down signal
of depth camera
V
OL
max=0.45V
V
OH
min=1.35V
DCAM_I2C_
SDA
197
OD
I2C data signal of
depth camera
1.8V power domain.
DCAM_I2C_
SCL
196
OD
I2C clock signal of
depth camera
1.8V power domain.
Keypad Interfaces
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
PWRKEY
39
DI
Turn on/off the
module
V
IL
max=0.63V
V
IH
min=1.17V
Pull-up to 1.8V
internally.
Active low.
VOL_UP
146
DI
Volume up
V
IL
max=0.63V
V
IH
min=1.17V
If unused, keep this
pin open.
VOL_DOWN
147
DI
Volume down
V
IL
max=0.63V
V
IH
min=1.17V
If unused, keep this
pin open.
SENSOR_I2C Interfaces
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
SENSOR_I2C
_SCL
131
OD
I2C clock signal of
external sensors
1.8V power domain.
SENSOR_I2C
_SDA
132
OD
I2C data signal of
external sensors
1.8V power domain.
ADC Interfaces
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
PMU_MPP2
151
AI
General purpose
ADC interface
Maximum input
voltage: 1.7V.
PMU_MPP4
152
AI
General purpose
ADC interface
Maximum input
voltage: 1.7V.
BAT_THERM
29
AI
Battery temperature
detection
Internally pulled up.
Externally connected
to GND via a 47K
NTC resistor.
Maximum input
voltage: 1.875V.
BAT_ID
17
AI
Battery type
detection
Maximum input
voltage: 1.875V.If
unused, keep this pin