Siemens TC65 - Page 74

TC65 Hardware Interface Description
Strictly confidential / Draft
s
TC65_HD_V00.521 Page 74 of 99 24.05.2005
Function Signal name IO Signal form and level Comment
CCIN I
R
I
 100kΩ
V
IL
max = 0.6V at I = -25µA
V
IH
min = 2.1V at I = -10µA
V
O
max = 3.05V
CCRST O
R
O
 47Ω
V
OL
max = 0.25V at I = +1mA
V
OH
min = 2.5V at I = -0.5mA
V
OH
max = 2.95V
CCIO I/O
R
I
 4.7kΩ
V
IL
max = 0.75V
V
IL
min = -0.3V
V
IH
min = 2.1V
V
IH
max = CCVCCmin + 0.3V = 3.05V
R
O
 100Ω
V
OL
max = 0.3V at I = +1mA
V
OH
min = 2.5V at I = -0.5mA
V
OH
max = 2.95V
CCCLK O
R
O
 100Ω
V
OL
max = 0.3V at I = +1mA
V
OH
min = 2.5V at I = -0.5mA
V
OH
max = 2.95V
CCVCC O V
O
min = 2.75V
V
O
typ = 2.85V
V
O
max = 2.95V
I
O
max = -20mA
SIM interface
specified for
use with 3V
SIM card
CCGND Ground
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 I
R
I
 100kΩ
V
IL
max = 0.6V at I = -25µA
V
IH
min = 2.1V at I = -10µA
V
O
max = 3.05V
CCRST O
R
O
 47Ω
V
OL
max = 0.25V at I = +1mA
V
OH
min = 1.45V at I = -0.5mA
V
OH
max = 1.90V
CCIO I/O
R
I
 4.7kΩ
V
IL
max = 0.45V
V
IH
min = 1.35V
V
IH
max = CCVCCmin + 0.3V = 2.00V
R
O
 100Ω
V
OL
max = 0.3V at I = +1mA
V
OH
min = 1.45V at I = -0.5mA
V
OH
max = 1.90V
CCCLK O
R
O
 100Ω
V
OL
max = 0.3V at I = +1mA
V
OH
min = 1.45V at I = -0.5mA
V
OH
max = 1.90V
CCVCC O V
O
min = 1.70V,
V
O
typ = 1.80V
V
O
max = 1.90V
I
O
max = -20mA
SIM interface
specified for
use with
1.8V SIM
card
CCGND Ground
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.
ASC0
Serial
interface
RXD0
TXD0
CTS0
RTS0
DTR0
DCD0
DSR0
RING0
O
I
O
I
I
O
O
O
V
OL
max = 0.2V at I = 2mA
V
OH
min = 2.55V at I = -0.5mA
V
OH
max = 3.05V
V
IL
max = 0.8V
V
IH
min = 2.0V
V
IH
max = VEXTmin + 0.3V = 3.05V
Serial interface for AT
commands or data stream.
If lines are unused keep pins
open.