73S8009CN Maxim, 73S8009CN Datasheet - Page 12

• Manufacturer Part Number: 73S8009CN
• Manufacturer: Maxim

73S8009CN Data Sheet
2.4
Table 5 lists the 73S8009CN digital signals characteristics.
12
Symbol
Reset and Clock for card interface, RST, CLK
V
V
V
Ifloat
I
I
t
δ
Symbol
Digital I/O
(except for I/OUC, AUX1UC, AUX2UC; see Smart Card Interface Requirements for those specifications)
V
VIL
V
V
V
R
R
|I
t
t
t
t
t
t
RST_LIM
CLK_LIM
R
SL
DZ
IS
SI
ID
DI
IL1
OH
OL
INACT
IL
IH
OL
OH
OUT
ACK
, t
|
OFFACK
F
Digital Signals Characteristics
Output level, high
Output level, low
Output voltage when
outside of session
Input current
Output current limit, RST
Output current limit, CLK
Output rise time, fall time
Duty cycle for CLK
Parameter
Input Low Voltage
Input low voltage for
OFF_ACK pin
Input High Voltage
Output Low Voltage
Output High Voltage
Pull-up resistor; OFF, RDY
Resistor between
OFF_REQ and 0FF_ACK
Input Leakage Current
Time from CS goes high to
interface active
Time from CS goes low to
interface inactive, Hi-Z
Set-up time, control
signals to CS rising edge
Hold time, control signals
from CS rising edge
Set-up time, control
signals to CS fall
Hold time, control signals
from CS fall
Parameter
Table 5: Digital Signals Characteristics
I
I
I
I
Input current with SC/USB =
0, open circuited
C
90%
C
90%
C
CLKIN duty cycle is 48% to
52%.
OH
OL
OL
OL
L
L
L
=200µA
= 35pF for CLK, 10% to
= 200pF for RST, 10% to
=35pF, F
OFF_REQ pin = VDD
I
I
GND < V
= 0
= 1mA
=-200µA
OL
OH
= 2mA
= -1mA
Condition
Condition
CLK
IN
< V
≤
DD
20MHz,
V
DD
Min
-0.3
-0.3
1.8
14
70
50
50
50
50
- 0.45
–
–
–
0.9 * V
Min
45
-5
0
–
–
–
–
–
–
CC
Nom
100
20
–
–
–
–
–
–
–
–
–
–
–
–
Nom
–
–
–
–
–
–
–
–
–
–
DS_8009CN_026
V
DD
Max
0.45
130
0.8
0.7
26
50
50
5
–
–
–
–
+ 0.3
Max
0.15
*V
V
100
0.1
0.3
+5
30
70
12
55
CC
CC
Rev. 1.4
Unit
Unit
mA
mA
µA
kΩ
kΩ
μA
ns
ns
ns
ns
ns
ns
ns
ns
%
V
V
V
V
V
V
V
V
V