Product Info

Smart LTE Module Series
SC66 Hardware Design
SC66_Hardware_Design 29 / 139
USB_VBUS 41, 42
PI/
PO
Charging power
input;
Power supply output
for OTG device;
USB/charger
insertion detection
Vmax=10V
Vmin=3.6V
Vnorm=5.0V
USB2_HS_DM 25 IO
USB 2.0 differential
data bus (-)
90Ω differential
impedance;
USB 2.0 standard
compliant;
Only support host
mode.
USB2_HS_DP 26 IO
USB 2.0 differential
data bus (+)
USB1_HS_DM 33 IO
USB 2.0 differential
data bus (-)
90Ω differential
impedance;
USB 2.0 standard
compliant;
Support OTG
Support software
download.
USB1_HS_DP 32 IO
USB 2.0 differential
data bus (+)
USB_SS2_TX
_P
165 IO
USB 3.1 channel 2
differential transmit
(+)
90Ω differential
impedance.
USB 3.1 standard
compliant.
USB_SS2_TX
_M
164 IO
USB 3.1 channel 2
differential transmit
(-)
USB_SS2_RX
_P
162 IO
USB 3.1 channel 2
differential receive
(+)
USB_SS2_RX
_M
161 IO
USB 3.1 channel 2
differential receive
(-)
USB_SS1_RX
_P
171 IO
USB 3.1 channel 1
differential receive
(+)
90Ω differential
impedance;
USB 3.1 standard
compliant.
USB_SS1_RX
_M
172 IO
USB 3.1 channel 1
differential receive
(-)
USB_SS1_TX
_P
174 IO
USB 3.1 channel 1
differential transmit
(+)
90Ω differential
impedance.
USB_SS1_TX
_M
175 IO
USB 3.1 channel 1
differential transmit
(-)