Smart Module Series
SC200L_Series(Dual-band Wi-Fi)_Hardware_Design 32 / 111
3.4. Power Supply
3.4.1. Power Supply Pins
The module provides two VBAT_RF pins and two VBAT_BB pins for connection with the external power
supply. The VBAT_RF pins are used for the RF part of the module and the VBAT_BB pins are used for
the baseband part of the module.
GRFC Interfaces
Pin Name
Pin
No.
I/O
Description
DC Characteristics
Comment
GRFC_7
260
DO
Generic RF
control
GRFC_5
262
DO
Generic RF
control
Other Pins
Pin Name
Pin
No.
I/O
Description
DC Characteristics
Comment
USB_BOOT
46
DI
Force the module
into emergency
download mode
V
IL
max = 0.48 V
V
IH
min = 1.39 V
You can force the
module to enter
emergency download
mode by pulling it down
to ground during
power-up.
VIB_DRV_P
28
PO
Motor drive
V
O
= 1.80
–3.30 V
I
O
max = 100 mA
Connect it to the positive
pole of the motor.
Reserved Pins
Pin Name
Pin No.
Comment
RESERVED
32, 126, 127, 153, 154, 155, 157, 158, 159, 160, 161,
163, 164, 165, 166, 167, 168, 169, 170, 175, 177, 178,
179, 180, 181, 182, 186, 192, 193, 194, 195, 196, 197,
198, 199, 200, 201, 205, 232, 239, 242, 246, 254, 257,
263, 264, 265, 267, 270
Keep these pins open.