Smart LTE Module Series
SC66 Hardware Design
SC66_Hardware_Design 30 / 139
USB_CC1
224
AI
USB Type-C
detection channel 1
When Micro USB is
used, it can be used as
USB_ID pin.
USB_CC2
223
AI
USB Type-C
detection channel 2
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
1)
is used,
it should be connected
to GND through a
10KΩ resistor.
Cannot be multiplexed
into a general-purpose
GPIO.
SS_DIR_IN
21
DI
CC status detection
pin
When USB Type-C is
used, it should be
connected to
SS_DIR_OUT;
When uUSB is used, it
should be connected to
GND.
Cannot be multiplexed
into a general-purpose
GPIO.
SS_DIR_OUT
226
DO CC status output pin
(U)SIM Interfaces
Pin Name
Pin No. I/O
Description
DC Characteristics Comment
USIM1_DET
145
DI
(U)SIM1 card
hot-plug detection
V
IL
max=0.63V
V
IH
min=1.17V
Active Low.
Require external
pull-up to 1.8V.
If unused, keep it
open.
USIM1_RST
144
DO
(U)SIM1 card reset
signal
VOLmax=0.4V
VOHmin=
0.8 × USIM1_VDD
Cannot be multiplexed
into general-purpose
GPIOs.
USIM1_CLK
143
DO
(U)SIM1 card clock
signal
USIM1_DATA
142
IO
(U)SIM1 card data
signal
V
IL
max=
0.2 × USIM1_VDD
