DS8005 Maxim, DS8005 Datasheet - Page 4

• Manufacturer Part Number: DS8005
• Description: The DS8005 dual smart card interface is a low-cost, dual analog front-end for an IC card reader interface that needs to communicate with two smart cards in a mutually exclusive fashion
• Manufacturer: Maxim

Smart Card Interface
RECOMMENDED DC OPERATING CONDITIONS (continued)
(V
the CONDITIONS column.) (Note 1)
4
Card-Active Mode
DATA LINES (I/O_ AND I/OIN)
I/O_
Pullup Pulse Active Time
Maximum Frequency
Input Capacitance
I/OA AND I/OB PINS
Card-Inactive Mode
Card-Active Mode
DD
_______________________________________________________________________________________
= +3.3V, V
I/OIN Falling Edge Delay
PARAMETER
DDA
= +5.0V, T
Output Low Voltage
Output Current
Shutdown Current
Threshold
Slew Rate
Output Low Voltage
Output Current
Internal Pullup
Resistor
Output Low Voltage
Output High
Voltage
Output Rise/Fall
Time
Input Low Voltage
Input High Voltage
A
= +25°C, unless otherwise noted. All specifications apply to the device, unless otherwise noted in
t
SYMBOL
D(IO-IOIN)
V
V
V
I
R
I
f
V
V
CC(SD)
IOMAX
OL_IO1
OH_IO2
V
OL_IO1
OL_IO2
V
I
PU_IO
CCSR
IH_IO
t
t
IL_IO
CC2
CC2
C
PU
OT
I
Device: I
V
Device: I
Device: I
Device: I
5V card; current pulses of 40nC
with I < 200mA, t < 400ns,
f < 20MHz
3V card; current pulses of 24nC
with I < 200mA, t < 400ns,
f < 20MHz
1.8V card; current pulses of 12nC
with I < 200mA, t < 400ns,
f < 20MHz
V
V
V
(Note 1)
Up/down; C < 300nF (Note 5)
(Note 1)
(Note 1)
I
V
To V
I
I
I
C
OL_IO
OL_IO
OH_IO
OH_IO
DDA
CC(5V)
CC(3V)
CC(1.8V)
OL_IO
L
= 30pF (Note 1)
CC
= 4.75V (Note 1)
= 1mA
= 1mA
= < -20μA
= < -40μA (3V/5V)
= 0V
= 0 to 5V
= 0 to 3V
CC(5V)
CC(5V)
CC(3V)
CC(1.8V)
= 0 to 1.8V
CONDITIONS
< 30mA,
< 80mA
< 65mA
< 30mA
0.75 x V
0.8 x V
4.65
4.75
2.78
1.64
2.75
1.62
0.05
MIN
-0.3
4.6
1.5
0
6
CC
CC
TYP
0.16
120
1.8
11
5
5
3
MAX
5.25
5.25
3.24
1.98
3.25
1.98
0.22
+0.8
200
100
V
5.4
-80
-65
-30
0.3
0.3
0.1
10
19
-1
1
CC
UNITS
MHz
V/μs
mA
mA
mA
k
ns
ns
pF
μs
V
V
V
V
V