SO (derate 16.7mW/°C above +70°C) .....................1355.9mW
Storage Temperature Range .............................-55°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED DC OPERATING CONDITIONS
(V
DD
= +3.3V, V
DDA
= +5.0V, T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
POWER SUPPLY
Digital Supply Voltage
Card Voltage-Generator Supply Voltage
Reset Voltage Thresholds
CURRENT CONSUMPTION
Active V
DD
Current 5V Cards
(Including 80mA Draw from 5V Card)
Active V
DD
Current 5V Cards
(Current Consumed by DS8024 Only)
Active V
DD
Current 3V Cards
(Including 65mA Draw from 3V Card)
Active V
DD
Current 3V Cards
(Current Consumed by DS8024 Only)
Inactive-Mode Current
CLOCK SOURCE
Crystal Frequency
f
XTAL
f
XTAL1
XTAL1 Operating Conditions
V
IL_XTAL1
V
IH_XTAL1
External Capacitance for Crystal
Internal Oscillator
SHUTDOWN TEMPERATURE
Shutdown Temperature
T
SD
(Note 3)
+150
°C
C
XTAL1
,
C
XTAL2
f
INT
Low-level input on XTAL1 (Note 3)
High-level input on XTAL1 (Note 3)
(Note 3)
2.7
External crystal
0
0
-0.3
0.7 x
V
DD
20
20
0.3 x
V
DD
V
DD
+
0.3
15
pF
MHz
MHz
MHz
I
DD_50V
I
DD_IC
I
DD_30V
I
DD_IC
I
DD
I
CC
= 80mA, f
XTAL
= 20MHz,
f
CLK
= 10MHz, V
DDA
= 5.0V
I
CC
= 80mA, f
XTAL
= 20MHz,
f
CLK
= 10MHz, V
DDA
= 5.0V (Note 2)
I
CC
= 65mA, f
XTAL
= 20MHz,
f
CLK
= 10MHz, V
DDA
= 5.0V
I
CC
= 65mA, f
XTAL
= 20MHz,
f
CLK
= 10MHz, V
DDA
= 5.0V (Note 2)
Card inactive
215
135
100
35
500
mA
mA
mA
mA
μA
V
DD
V
DDA
V
TH2
V
HYS2
V
CC
=
5V,
|I
CC
|
< 80mA
V
CC
=
5V,
|I
CC
|
< 30mA
Threshold voltage (falling)
Hysteresis
2.7
4.0
3.0
2.30
50
2.45
100
6.0
6.0
6.0
2.60
150
V
V
V
mV
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
2
Maxim Integrated
DS8024
Smart Card Interface
RECOMMENDED DC OPERATING CONDITIONS (continued)
(V
DD
= +3.3V, V
DDA
= +5.0V, T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
RST PIN
Card-Inactive Mode
Output Low Voltage
Output Current
Output Low Voltage
Output High
Voltage
Rise Time
Card-Active Mode
Fall Time
Shutdown Current
Threshold
Current Limitation
RSTIN to RST Delay
CLK PIN
Card-Inactive Mode
Output Low Voltage
Output Current
Output Low Voltage
Output High
Voltage
Rise Time
Card-Active Mode
Fall Time
Current Limitation
Clock Frequency
Duty Factor
Slew Rate
V
CC
PIN
Card-Inactive Mode
Output Low Voltage
Output Current
V
CC1
I
CC1
I
CC
= 1mA
V
CC
= 0V
I
CC(5V)
< 80mA
I
CC(3V)
< 65mA
Output Low Voltage
V
CC2
5V card: current pulses of 40nC
with I < 200mA, t < 400ns,
f < 20MHz (Note 3)
3V card: current pulses of 24nC
with I < 200mA, t < 400ns,
f < 20MHz (Note 3)
Output Current
Shutdown Current
Threshold
Slew Rate
I
CC2
I
CC(SD)
V
CCSR
Up/down, C < 300nF
0.05
V
CC(5V)
= 0 to 5V
V
CC(3V)
= 0 to 3V
120
0.16
0.22
0
0
4.75
2.78
4.6
5.00
3.00
0.3
-1
5.25
3.22
5.4
V
V
mA
SR
V
OL_CLK1
I
OL_CLK1
V
OL_CLK2
V
OH_CLK2
t
R_CLK
t
F_CLK
I
CLK(LIMIT)
f
CLK
Operational (Note 3)
C
L
= 30pF (Note 3)
C
L
= 30pF (Note 3)
I
OLCLK
= 1mA
V
OLCLK
= 0V
I
OLCLK
= 200μA
I
OHCLK
= -200μA
C
L
= 30pF (Note 3)
C
L
= 30pF (Note 3)
-70
0
45
0.2
0
0
0
V
CC
-
0.5
0.3
-1
0.3
V
CC
8
8
+70
10
55
V
mA
V
V
ns
ns
mA
MHz
%
V/ns
V
OL_RST1
I
OL_RST1
V
OL_RST2
V
OH_RST2
t
R_RST
t
F_RST
I
RST(SD)
I
RST(LIMIT)
t
D(RSTIN-RST)
-20
I
OL_RST
= 1mA
V
O_LRST
= 0V
I
OL_RST
= 200μA
I
OH_RST
= -200μA
C
L
= 30pF (Note 3)
C
L
= 30pF (Note 3)
-20
+20
2
0
0
0
V
CC
-
0.5
0.3
-1
0.3
V
CC
0.1
0.1
V
mA
V
V
μs
μs
mA
mA
μs
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Card-Active Mode
2.75
3.25
-80
-65
mA
mA
V/μs
Maxim Integrated
3
DS8024
Smart Card Interface
RECOMMENDED DC OPERATING CONDITIONS (continued)
(V
DD
= +3.3V, V
DDA
= +5.0V, T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
DATA LINES (I/O AND I/OIN)
I/O
I/OIN Falling Edge Delay
t
D(IO-IOIN)
t
PU
f
IOMAX
C
I
Output Low Voltage
Card-Inactive Mode
Output Current
Internal Pullup
Resistor
Output Low Voltage
Output High
Voltage
Output Rise/Fall
Time
Input Low Voltage
Card-Active Mode
Input High Voltage
Input Low Current
Input High Current
Input Rise/Fall Time
Current Limitation
Current When
Pullup Active
I/OIN, AUX1IN, AUX2IN PINS
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
Integrated Pullup Resistor
Current When Pullup Active
V
OL
V
OH
t
OT
V
IL
V
IH
I
IL_IO
I
IH_IO
t
IT
R
PU
I
PU
V
IL
= 0V
V
IH
= V
DD
V
IL
to V
IH
(Note 3)
Pullup to V
DD
C
L
= 30pF, V
OH
= 0.9 x V
DD
(Note 3)
9
-1
11
I
OL
= 1mA
I
OH
< -40μA
C
L
= 30pF, 10% to 90% (Note 3)
-0.3
0.7 x
V
DD
0
0.75 x
V
DD
0.3
V
DD
+
0.1
0.1
0.3 x
V
DD
V
DD
+
0.3
600
10
1.2
13
V
V
μs
V
V
μA
μA
μs
k
mA
V
OL_IO1
I
OL_IO1
R
PU_IO
V
OL_IO2
V
OH_IO2
t
OT
V
IL_IO
V
IH_IO
I
IL_IO
I
IH_IO
t
IT
I
IO(LIMIT)
I
PU
V
IL_IO
= 0V
V
IH_IO
= V
CC
(Note 3)
C
L
= 30pF
C
L
= 80pF, V
OH
= 0.9 x V
DD
(Note 3)
-15
-1
(Note 3)
I
OL_IO
= 1mA
V
OL_IO
= 0V
To V
CC
I
OL_IO
= 1mA
I
OH_IO
= < -40μA (3V/5V)
C
L
= 30pF (Note 3)
-0.3
1.5
0
0
9
0
0.75 x V
CC
11
(Note 3)
(Note 3)
200
100
1
10
0.3
-1
19
0.3
V
CC
0.1
+0.8
V
CC
700
20
1.2
+15
ns
ns
MHz
pF
V
mA
k
V
V
μs
V
μA
μA
μs
mA
mA
Pullup Pulse Active Time
Maximum Frequency
Input Capacitance
I/O, AUX1, AUX2 PINS
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
4
Maxim Integrated
DS8024
Smart Card Interface
RECOMMENDED DC OPERATING CONDITIONS (continued)
(V
DD
= +3.3V, V
DDA
= +5.0V, T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
0.3 x
V
DD
V
DD
+
0.3
5
5
50
0
0.75 x
V
DD
12
20
28
0.3 x
V
DD
0.7 x
V
DD
V
IL_PRES
= 0V
V
IH_PRES
= V
DD
160
80
95
160
8
40
40
85
120
0.3
UNITS
CONTROL PINS (CLKDIV1, CLKDIV2,
CMDVCC,
RSTIN, 5V/3V)
Input Low Voltage
Input High Voltage
Input Low Current
Input High Current
Integrated Pullup Resistor
INTERRUPT OUTPUT PIN (OFF)
Output Low Voltage
Output High Voltage
Integrated Pullup Resistor
PRES,
PRES
PINS
Input Low Voltage
Input High Voltage
Input Low Current
Input High Current
TIMING
Activation Time
Deactivation Time
CLK to Card Start
Time
Window Start
Window End
t
ACT
t
DEACT
t
3
t
5
t
DEBOUNCE
μs
μs
μs
ms
V
IL_PRES
V
IH_PRES
I
IL_PRES
I
IH_PRES
V
V
μA
μA
V
OL
V
OH
R
PU
I
OL
= 2mA
I
OH
= -15μA
Pullup to V
DD
V
V
k
V
IL
V
IH
I
IL_IO
I
IH_IO
R
PU
0 < V
IL
< V
DD
0 < V
IH
< V
DD
Pullup to V
DD
, 5V/3V only
-0.3
0.7 x
V
DD
V
V
μA
μA
kĀ
PRES/PRES Debounce Time
Note 1:
Operation guaranteed at T
A
= -40°C and T
A
= +85°C, but not tested.
Note 2:
IDD_IC measures the amount of current used by the DS8024 to provide the smart card current minus the load.
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Embedded System
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