Smart LTE Module Series
SC66 Hardware Design
SC66_Hardware_Design 53 / 139
USB1_HS_DP
32
IO
USB 2.0 differential data bus
(+)
USB_SS1_RX_P
171
AI
USB 3.1 differential receive (+)
USB_SS1_RX_M
172
AI
USB 3.1 differential receive (-)
USB_SS1_TX_P
174
AO
USB 3.1 channel 1 differential
transmit (+)
USB_SS1_TX_M
175
AO
USB 3.1 channel 1 differential
transmit (-)
USB_SS2_RX_M
161
AI
USB 3.1 channel 2 differential
receive (-)
USB_SS2_RX_P
162
AI
USB 3.1 channel 2 differential
receive (+)
USB_SS2_TX_M
164
AO
USB 3.1 channel 2 differential
transmit (-)
USB_SS2_TX_P
165
AO
USB 3.1 channel 2 differential
transmit (+)
UUSB_TYPEC
23
DI
uUSB & USB Type-C configuration
selection pin
When USB Type-C
is used, it should be
connected to
VPH_PWR through
a 10KΩ resistor.
When uUSB is
used, it should be
connected to GND
through a 10KΩ
resistor.
Cannot be
multiplexed into a
general-purpose
GPIO.
USB_CC2
223
AI
USB Type-C control detection pin 2
USB_CC1
224
AI
USB Type-C control detection pin 1
When Micro USB is
used, it can be used
as USB_ID pin.
SS_DIR_IN
21
DI
CC status detection pin
When Type-C is
used, it should be
connected to
SS_DIR_OUT;
When uUSB is
used, it should be
connected to GND.