Characteristics, Smart card interface tda8001 – Philips TDA8001 User Manual
Page 14
1996 Dec 12
14
Philips Semiconductors
Product specification
Smart card interface
TDA8001
CHARACTERISTICS
V
DD
= 12 V; V
H
= 25 V; V
SUP
= 5 V; T
amb
= 25
°
C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
V
DD
supply voltage
6.7
−
18
V
I
DD
supply current
idle mode; V
DD
=
8 V
20
30
38
mA
idle mode; V
DD
=
18 V
22
34
42
mA
active mode; unloaded
35
45
55
mA
V
th1
threshold voltage for power-on
reset
−
3.0
4.0
V
V
th4
threshold voltage on V
DD
(falling)
6.0
−
6.5
V
V
hys4
hysteresis on V
th4
50
−
200
mV
Voltage supervisor
V
SUP
voltage supply for the supervisor
−
5.0
−
V
I
SUP
input current at V
SUP
−
1.8
2.4
mA
V
th2
threshold voltage on V
SUP
(falling)
4.5
−
4.72
V
V
hys2
hysteresis on V
th2
10
−
80
mV
V
th3
threshold voltage on DELAY
2.35
−
2.65
V
I
DEL
output current at DELAY
pin grounded (charge)
−
5
−
−
2
µ
A
V
DEL
=
4 V (discharge)
6
−
−
mA
V
DEL
voltage on pin DELAY
−
−
3.5
V
ALARM, ALARM (open-collector outputs)
I
OH
HIGH level output current on
pin ALARM
V
OH
=
5 V
−
−
25
µ
A
V
OL
LOW level output voltage on
pin ALARM
I
OL
=
2 mA
−
−
0.4
V
I
OL
LOW level output current on
pin ALARM
V
OL
=
0 V
−
−
−
25
µ
A
V
OH
HIGH level output voltage on
pin ALARM
I
OH
= −
2 mA
V
SUP
−
1
−
−
V
t
d
delay between V
SUP
and ALARM
C
DEL
=
47 nF; see Fig.4
−
−
10
µ
s
t
pulse
ALARM pulse width
C
DEL
=
47 nF
15
−
50
ms
Interrupt lines OFF and DETECT (open-collector)
I
OH
HIGH level output current
V
OH
=
5 V
−
−
25
µ
A
V
OL
LOW level output voltage
I
OL
=
1 mA
−
−
0.4
V
Logic inputs (CMDVCC, VPP21, VPP15, VPP12.5, CMD7, CMD3.5, PRES, PRES and RSTIN); note 1
V
IL
LOW level input voltage
−
−
0.8
V
V
IH
HIGH level input voltage
1.5
−
−
V
I
IL
LOW level input current
V
IL
=
0 V
−
−
−
10
µ
A