SimCom SIM5300E

SIM5300E_Hardware_Design_V1.02
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SIM5300E supports both 1.8V and 3.0V USIM cards. The USIM interface is powered from an internal
regulator in the module.
Table 11: USIM Electronic characteristic in 1.8V mode (USIM_VDD=1.8V)
Symbol
Parameter
Min.
Typ.
Max.
Unit
USIM_VDD
LDO power output voltage
1.7
1.8
1.9
V
V
IL
High-level input voltage
0
0.2*USIM_VDD
V
V
IH
Low-level input voltage
0.7*USIM_VDD
USIM_VDD+0.2
V
V
OL
High-level output voltage
0
0.2*USIM_VDD
V
V
OH
Low-level output voltage
0.7*USIM_VDD
USIM_VDD+0.1
V
Table 12: USM Electronic characteristic 3.0V mode (USIM_VDD=2.9V)
Symbol
Parameter
Min.
Typ.
Max.
Unit
USIM_VDD
LDO power output voltage
2.7
2.9
3.1
V
V
IL
High-level input voltage
0
0.2*USIM_VDD
V
V
IH
Low-level input voltage
0.7*USIM_VDD
USIM_VDD+0.2
V
V
OL
High-level output voltage
0
0.2*USIM_VDD
V
V
OH
Low-level output voltage
0.7*USIM_VDD
USIM_VDD+0.1
V
It is recommended to use an ESD protection component such as ST (www.st.com ) ESDA6V1W5 or ON SEMI
(www.onsemi.com ) SMF05C.The pull up resistor (4.7KΩ) on the USIM_DATA line is already added in the
module internally. Note that the USIM peripheral circuit should be closed to the USIM card socket. The
reference circuit of the 8-pin USIM card holder is illustrated in the following figure.