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AC75 Hardware Interface Description
Strictly confidential / Preliminary
Function
Signal name
SIM interface
CCIN
specified for
use with 3V
SIM card
CCRST
CCIO
CCCLK
CCVCC
CCGND
SIM interface
CCIN
specified for
use with
1.8V SIM
card
CCRST
CCIO
CCCLK
CCVCC
CCGND
2
I
C interface
I2CCLK _SPICLK
AC75_HD_V00.202
IO Signal form and level
I
R
≈ 100kΩ
I
V
max = 0.6V at I = -25µA
IL
V
min = 2.1V at I = -10µA
IH
V
max = 3.05V
O
O
R
≈ 47Ω
O
V
max = 0.25V at I = +1mA
OL
V
min = 2.5V at I = -0.5mA
OH
V
max = 2.95V
OH
I/O R
≈ 4.7kΩ
I
V
max = 0.75V
IL
V
min = -0.3V
IL
V
min = 2.1V
IH
V
max = CCVCCmin + 0.3V = 3.05V
IH
R
≈ 100Ω
O
V
max = 0.3V at I = +1mA
OL
V
min = 2.5V at I = -0.5mA
OH
V
max = 2.95V
OH
O
R
≈ 100Ω
O
V
max = 0.3V at I = +1mA
OL
V
min = 2.5V at I = -0.5mA
OH
V
max = 2.95V
OH
O
V
min = 2.75V
O
V
typ = 2.85V
O
V
max = 2.95V
O
I
max = -20mA
O
Ground
I
R
≈ 100kΩ
I
V
max = 0.6V at I = -25µA
IL
V
min = 2.1V at I = -10µA
IH
V
max = 3.05V
O
O
R
≈ 47Ω
O
V
max = 0.25V at I = +1mA
OL
V
min = 1.45V at I = -0.5mA
OH
V
max = 1.90V
OH
I/O R
≈ 4.7kΩ
I
V
max = 0.45V
IL
V
min = 1.35V
IH
V
max = CCVCCmin + 0.3V = 2.00V
IH
R
≈ 100Ω
O
V
max = 0.3V at I = +1mA
OL
V
min = 1.45V at I = -0.5mA
OH
V
max = 1.90V
OH
O
R
≈ 100Ω
O
V
max = 0.3V at I = +1mA
OL
V
min = 1.45V at I = -0.5mA
OH
V
max = 1.90V
OH
O
V
min = 1.70V,
O
V
typ = 1.80V
O
V
max = 1.90V
O
I
max = -20mA
O
Ground
O
V
max = 0.2V at I = 2mA
OL
V
min = 2.55V at I = -0.5mA
OH
V
max = 3.05V
OH
Page 90 of 120
s
Comment
CCIN = Low, SIM card holder
closed
Maximum cable length or
copper track 100mm to SIM
card holder.
All signals of SIM interface
are protected against ESD
with a special diode array.
Usage of CCGND is
mandatory.
CCIN = Low, SIM card holder
closed
Maximum cable length or
copper track 100mm to SIM
card holder.
All signals of SIM interface
are protected against ESD
with a special diode array.
Usage of CCGND is
mandatory.
2
I
C interface is only available
if the two pins are not used as
SPI interface... continues
next page.
27.04.2006
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