Smart Module Series
SC200L_Series(Dual-band Wi-Fi)_Hardware_Design 24 / 111
HUB_USB_DP
173
AIO
USB differential
data bus (+)
USB 2.0 standard
compliant.
90
Ω differential
impedance.
Supports USB host
mode only and supports
USB hub.
HUB_USB_DM
174
AIO
USB differential
data bus (-)
(U)SIM Interfaces
Pin Name
Pin
No.
I/O
Description
DC Characteristics
Comment
USIM2_DET
17
DI
(U)SIM2 card
hot-plug detect
V
IL
max=0.48 V
V
IH
min=1.39 V
This function is enabled
by default. Active low.
If it is not used, keep it
open.
USIM2_RST
18
DO
(U)SIM2 card
reset
V
OL
max =
0.1 × USIM2_VDD
V
OH
min =
0.9 × USIM2_VDD
USIM2_CLK
19
DO
(U)SIM2 card
clock
V
OL
max =
0.1 × USIM2_VDD
V
OH
min =
0.9 × USIM2_VDD
USIM2_DATA
20
DIO
(U)SIM2 card
data
V
IL
max =
0.3 × USIM2_VDD
V
IH
min =
0.7 × USIM2_VDD
V
OL
max =
0.1 × USIM2_VDD
V
OH
min =
0.9 × USIM2_VDD
USIM2_VDD
21
PO
(U)SIM2 card
power supply
1.80 V (U)SIM:
Vmax = 1.85 V
Vmin = 1.75 V
2.95 V (U)SIM:
Vmax = 3.1 V
Vmin = 2.90 V
Either 1.8 V or 2.95 V
(U)SIM card is
supported.
USIM1_DET
22
DI
(U)SIM1 card
hot-plug detect
V
IL
max = 0.48 V
V
IH
min = 1.39 V
This function is enabled
by default. Active low.
If it is not used, keep it
open.