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Philips Semiconductors
Smart card interface
SYMBOL
V
voltage on pin I/O outside a
IDLE
session
Z
impedance on pin I/O( C)
IDLE
outside a session
R
internal pull-up resistance
pu
between pin I/O and V
t
, t
rise and fall times
r
f
Protections
T
shut-down local temperature
sd
I
shut-down current at V
CC(sd)
I
shut-down current at V
PP(sd)
I
current limitation on pin I/O
I/O(lim)
Timing
t
activation sequence duration
act
t
deactivation sequence duration
de
t
start of the window for sending
3
CLK to the card
t
end of the window for sending
5
CLK to the card
t
maximum pulse width on
st
CMDVCC before V
Notes
1. Pins CMDVCC, VPP21, VPP15, VPP12.5, CMD7, CMD3.5 and PRES are active LOW; pins RSTIN and PRES are
active HIGH.
2. The transition time and duty cycle definitions are shown in Fig.12;
3. P is the card programming voltage set by pin VPP12.5, VPP15 or VPP21.
4. The tests for dynamic response of both V
capacitive load of 100 nF.
5. This condition ensures proper starting of the oscillator with crystals having a series resistance up to 100 .
handbook, full pagewidth
1996 Dec 12
PARAMETER
CC
CC
PP
starts rising
CC
PP
t r
90%
10%
t 1
Fig.12 Definition of transition times.
CONDITIONS
C
= C
30 pF
i
o
from I/O to I/O( C)
see Fig.7
see Fig.8
and V
are performed at 1 Hz, 10 kHz, 100 kHz and 1 MHz, with a
CC
t f
90%
10%
t 2
17
MIN.
TYP.
10
8
10
135
150
75
3
110
100
80
t
1
.
=
-------------- -
t
t
+
1
2
MBH856
Product specification
TDA8001
MAX.
UNIT
0.4
V
M
12
k
0.5
s
C
mA
mA
5
mA
s
s
70
s
s
30
s
V OH
1.5 V
V OL
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