Smart Module Series
SC200K_Series_Hardware_Design 19 / 105
2.5. Pin Description
The following table shows the DC characteristics and pin descriptions of the module.
Table 4: I/O Parameters Definition
Table 5: Pin Description
Type
Description
AI
Analog Input
AO
Analog Output
AIO
Analog Input/Output
DI
Digital Input
DO
Digital Output
DIO
Digital Input/Output
OD
Open Drain
PI
Power Input
PO
Power Output
PIO
Power Input/Output
Power Supply
Pin Name
Pin
No.
I/O
Description
DC
Characteristics
Comment
VBAT_BB
1, 2
PIO
Power supply for the
module’s baseband
part
Vmax = 4.20 V
Vmin = 3.50 V
Vnom = 3.80 V
It must be provided
with sufficient current
up to 3 A.
It is suggested to use a
TVS for surge
protection.
VBAT_RF
145,
146
PI
Power supply for the
module’s RF part
VDD1V85
111
PO
1.85 V output
Vnom = 1.85 V
I
O
max = 100 mA
Power supply only for
I/O’s pull-up circuits
and level-shifting
circuit.
Cannot supply power
