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(U)SIM Interface
Pin Name
Pin No.
USIM_VDD
21
USIM_DATA
18
USIM_CLK
22
USIM_RST
16
USIM_DET
17
UG89_Hardware_Design
I/O
Description
Power supply for
PO
(U)SIM card
IO
(U)SIM card data
DO
(U)SIM card clock
DO
(U)SIM card reset
(U)SIM card hot-
DI
plug detect
UMTS/HSPA+ Module Series
UG89 Hardware Design
DC Characteristics
Iomax=50mA
For 1.8V (U)SIM:
Vmax=1.9V
Vmin=1.7V
For 3.0V (U)SIM:
Vmax=3.05V
Vmin=2.7V
For 1.8V (U)SIM:
V
max=0.6V
IL
V
min=1.2V
IH
V
max=0.45V
OL
V
min=1.35V
OH
For 3.0V (U)SIM:
V
max=1.0V
IL
V
min=1.95V
IH
V
max=0.45V
OL
V
min=2.55V
OH
For 1.8V (U)SIM:
V
max=0.45V
OL
V
min=1.35V
OH
For 3.0V (U)SIM:
V
max=0.45V
OL
V
min=2.55V
OH
For 1.8V (U)SIM:
V
max=0.45V
OL
V
min=1.35V
OH
For 3.0V (U)SIM:
V
max=0.45V
OL
V
min=2.55V
OH
V
min=-0.3V
IL
V
max=0.6V
IL
V
min=1.2V
IH
V
max=2.0V
IH
open.
Comment
Either 1.8V or 3.0V
(U)SIM card is
supported and can
be identified
automatically by the
module.
1.8V power domain.
If unused, keep it
open.
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