UMTS/HSDPA Module
UC15 Hardware Design
UC15_Hardware_Design Confidential / Released 18 / 72
USIM_GND 8
Specified ground for
USIM card.
USIM_VDD 12
PO
Power supply for
USIM card.
For 1.8V USIM:
Vmax = 1.95V
Vmin = 1.65V
For 3V USIM:
Vmax = 3.3V
Vmin = 2.7V
I
O
max = 150mA
Either 1.8V or 3V is
supported by the
module automatically.
USIM_DATA 13
IO
Data signal of USIM
card.
For 1.8V USIM:
V
IL
max = 0.63V
V
IH
min = 1.17V
V
IH
max = 2.1V
V
OL
max = 0.45V
V
OH
min = 1.35V
For 3V USIM:
V
IL
max = 1.05V
V
IH
min = 1.95V
V
IH
max=
U0.3
V
OL
max = 0.45V
V
OH
min=
0.7*USIM_VDD
Pull-up to USIM_VDD
with 10k resistor
internally.
USIM_CLK 14
DO
Clock signal of USIM
card.
For 1.8V USIM:
V
OL
max = 0.45V
V
OH
min = 1.35V
For 3V USIM:
V
OL
max = 0.45V
V
OH
min=
0.7*USIM_VDD
USIM_RST 15
DO
Reset signal of
USIM card.
For 1.8V USIM:
V
OL
max = 0.45V
V
OH
min = 1.35V
For 3V USIM:
V
OL
max = 0.45V
V
OH
min=
0.8*USIM_VDD
