Smart Module Series
SC200K_Series_Hardware_Design 23 / 105
open.
(U)SIM Interfaces
Pin Name
Pin
No.
I/O
Description
DC
Characteristics
Comment
USIM2_VDD
21
PO
(U)SIM2 card power
supply
1.8 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 and can be
identified automatically
by the module.
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_CLK
19
DO
(U)SIM2 card clock
V
OL
max =
0.1 ×
USIM2_VDD
V
OH
min =
0.9 ×
USIM2_VDD
USIM2_RST
18
DO
(U)SIM2 card reset
V
OL
max =
0.1 ×
USIM2_VDD
V
OH
min =
0.9 ×
USIM2_VDD
USIM2_DET
17
DI
(U)SIM2 card
hot-plug detect
V
IL
max = 0.48 V
V
IH
min = 1.39 V
Active low.
If unused, keep it
open.
Disabled by software
by default.
USIM1_VDD
26
PO
(U)SIM1 card power
supply
1.8 V (U)SIM:
Vmax = 1.85 V
Vmin = 1.75 V
2.95 V (U)SIM:
Either 1.8 V or 2.95 V
(U)SIM card is
supported and can be
identified automatically
