Product Info
                                                                                                                                            Automotive  Module  Series 
   AG521R-NA  QuecOpen
Hardware  Design 
AG521R-NA_QuecOpen_Hardware_Design                                                                                        21  / 104 
USIM1_VDD     
251 
PO 
(U)SIM1 card power 
supply 
I
O
max = 50 mA For 
1.8 V (U)SIM: 
Vmax = 1.9 V 
Vmin = 1.7 V 
For 3.0 V (U)SIM: 
Vmax = 3.05 V 
Vmin = 2.7 V 
Either 1.8 V or 3.0 V 
is supported by the 
module automatically. 
If unused, keep it 
open. 
USIM1_DATA 
254 
IO 
(U)SIM1 card data 
For 1.8 V (U)SIM:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
V
IL
max = 0.36 V 
V
IH
min = 1.26 V 
V
OL
max = 0.4 V 
V
OH
min = 1.44 V 
For 3.0 V (U)SIM: 
V
IL
max = 0.57 V 
V
IH
min = 2.0 V 
V
OL
max = 0.4 V 
V
OH
min = 2.28 V 
If unused, keep it 
open. 
USIM1_CLK 
253 
DO 
(U)SIM1 card    clock 
For 1.8 V (U)SIM: 
V
OL
max = 0.4 V 
V
OH
min = 1.44 V 
For 3.0 V (U)SIM: 
V
OL
max = 0.4 V 
V
OH
min = 2.28 V 
If unused, keep it 
open. 
USIM1_RST 
250 
DO 
(U)SIM1 card reset 
For 1.8 V (U)SIM: 
V
OL
max = 0.4 V 
V
OH
min = 1.44 V 
For 3.0 V (U)SIM: 
V
OL
max = 0.4 V 
V
OH
min = 2.28 V 
If unused, keep it 
open. 
USIM1_DET 
255 
DI 
(U)SIM1 card 
hot-plug detect 
V
IL
min = -0.3 V 
V
IL
max = 0.63 V 
V
IH
min = 1.17 V 
V
IH
max = 2.1 V 
1.8 V power domain. 
If unused, keep it 
open. 
USIM2_VDD 
256 
PO 
(U)SIM2 card   
power supply 
For 1.8 V (U)SIM: 
Vmax = 1.9 V 
Vmin = 1.7 V 
For 3.0 V (U)SIM: 
Vmax = 3.05 V 
Vmin = 2.7 V 
Either 1.8 V or 3.0 V 
is supported by the 
module automatically. 
If unused, keep it 
open. 










