DS8007A Maxim, DS8007A Datasheet - Page 5

• Manufacturer Part Number: DS8007A
• Description: The DS8007A multiprotocol dual smart card interface is an automotive grade, low-cost, dual smart card reader interface supporting all ISO 7816, EMV™, and GSM11-11 requirements
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V
TIMING
Activation Sequence Duration
Deactivation Sequence Duration
PRESA/PRESB PINS
Input Low Voltage
Input High Voltage
Input Low Current
Input High Current
I/OAUX PIN
Internal Pullup Resistor
Output Low Voltage
Output High Voltage
Output Rise/Fall Time
C4x,
Pins
C8x
DD
= +3.3V, V
Card
Inactive
Mode
Card
Active
Mode
PARAMETER
DDA
Output Low
Voltage
Output Current
Internal Pullup
Resistor
Output Low
Voltage
Output High
Voltage
Output
Rise/Fall Time
Input Low
Voltage
Input High
Voltage
Input Low
Current
Input High
Current
Input Rise/Fall
Time
Pullup Pulse
Width
Operating
Frequency
= +3.3V, T
_______________________________________________________________________________________
Multiprotocol Dual Smart Card Interface
A
= +25°C, unless otherwise noted.) (Note 1)
SYMBOL
R
R
V
V
V
V
V
I
I
V
V
I
V
V
IHPRES
I
ILPRES
PULLUP
I
IHPRES
PULLUP
OLC48
ILPRES
OHAUX
t
OLAUX
OHC48
IHC48
f
OLC48
OLC48
ILC48
t
IHC48
WPU
t
ILC48
MAX
t
ACT
t
t
OT
DE
OT
IT
I
V
Between C4 or C8 and V
I
I
I
C
V
V
C
Active pullup
On card contact pins
See Figure 9
See Figure 9
V
V
Between I/OAUX and V
I
I
C
OLC48
OLC48
OHC48
OHC48
OLAUX
OHAUX
OLC48
ILIO
IHIO
ILPRES
IHPRES
L
L
L
= 30pF
= 30pF
= 30pF
= 0V
= V
= 1mA
= 1mA
= 1mA
= 0V
= 40μA (3V/5V)
= 0V
= V
-20μA
-40μA (3V/5V)
CCx
DD
CONDITIONS
DD
CCx
0.8 x V
0.75 x V
0.7 x V
0.75 x V
MIN
-0.3
1.5
0
0
6
0
9
CCx
DD
CCx
DD
TYP
200
10
14
0.25 x V
MAX
V
V
V
+0.8
0.35
V
850
130
150
0.3
0.1
1.2
0.3
0.1
14
20
40
40
19
CCx
CCx
CCx
-1
DD
1
DD
UNITS
MHz
mA
k
μA
μA
μA
k
μs
μs
ns
μs
μs
μs
V
V
V
V
V
V
V
5