Product Info

Smart LTE Module Series
SC650T Hardware Design
SC650T_Hardware_Design 27 / 131
through software
configuration.
USIM1_RST
144
DO
(U)SIM1 card reset
signal
V
OL
max=0.4V
V
OH
min=
0.8 × USIM1_VDD
USIM1_CLK
143
DO
(U)SIM1 card clock
signal
V
OL
max=0.4V
V
OH
min=
0.8 × USIM1_VDD
USIM1_DATA
142
IO
(U)SIM1 card data
signal
V
IL
max=
0.2 × USIM1_VDD
V
IH
min=
0.7 × USIM1_VDD
V
OL
max=0.4V
V
OH
min=
0.8 × USIM1_VDD
USIM1_VDD
141
PO
(U)SIM1 card power
supply
1.8V (U)SIM：
Vmax=1.85V
Vmin=1.75V
2.95V (U)SIM：
Vmax=3.1V
Vmin=2.8V
Either 1.8V or 2.95V
(U)SIM card is
supported.
USIM2_DET
256
DI
(U)SIM2 card
detection
V
IL
max=0.63V
V
IH
min=1.17V
Active Low.
Need external
pull-up to 1.8V.
If unused, keep this
pin open.
Disabled by default,
and can be enabled
through software
configuration.
USIM2_RST
207
DO
(U)SIM2 card reset
signal
V
OL
max=0.4V
V
OH
min=
0.8 × USIM2_VDD
USIM2_CLK
208
DO
(U)SIM2 card clock
signal
V
OL
max=0.4V
V
OH
min=
0.8 × USIM2_VDD
USIM2_DATA
209
IO
(U)SIM2 card data
signal
V
IL
max=
0.2 × USIM2_VDD
V
IH
min=
0.7 × USIM2_VDD
V
OL
max=0.4V
V
OH
min=