1996 Dec 12 17
Philips Semiconductors Product specification
Smart card interface TDA8001
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 VPP and VCC are performed at 1 Hz, 10 kHz, 100 kHz and 1 MHz, with a
capacitive load of 100 nF.
5. This condition ensures proper starting of the oscillator with crystals having a series resistance up to 100 Ω.
VIDLE voltage on pin I/O outside a
session
−−0.4 V
ZIDLE impedance on pin I/O(µC)
outside a session 10 −− MΩ
R
pu internal pull-up resistance
between pin I/O and VCC
81012kΩ
t
r
, tfrise and fall times Ci=C
o=30 pF −−0.5 µs
Protections
Tsd shut-down local temperature −135 −°C
I
CC(sd) shut-down current at VCC −−150 −mA
IPP(sd) shut-down current at VPP −−75 −mA
II/O(lim) current limitation on pin I/O from I/O to I/O(µC) 3 −5mA
Timing
tact activation sequence duration see Fig.7 −110 −µs
t
de deactivation sequence duration seeFig.8 −100 −µs
t
3start of the window for sending
CLK to the card
−−70 µs
t5end of the window for sending
CLK to the card 80 −− µs
t
st maximum pulse width on
CMDVCC before VCC starts rising
−−30 µs
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
δt1
t1t2
+
---------------
=
Fig.12 Definition of transition times.
handbook, full pagewidth
MBH856
10%
90%
10%
VOH
VOL
1.5 V
90%
tf
tr
t2
t1