DS8023 Datasheet, PDF (5/17 Pages) Maxim Integrated Products – Smart Card Interface

DS8023
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 UNITS
Input Low Current
I_{IL_IO}
V_IL = 0V
Input High Current
I_{IH_IO}
V_IH = V_DD
Input Rise/Fall Time
t_IT
V_IL to V_IH
Integrated Pullup Resistor
R_PU
Pullup to V_DD
Current When Pullup Active
I_PU
C_L = 30pF, V_OH = 0.9 x V_DD
CONTROL PINS (CLKDIV1, CLKDIV2, CMDVCC, RSTIN, 5V/3V)
600
μA
10
μA
1.2
μs
7
11
15
k

-1
mA
Input Low Voltage
V_IL
0.3 x
-0.3
V_DD
V
Input High Voltage
V_IH
0.7 x
V_DD
V_DD +
0.3
V
Input Low Current
Input High Current
INTERRUPT OUTPUT PIN (OFF)
I_{IL_IO}
I_{IH_IO}
0 < V_IL < V_DD
0 < V_IH < V_DD
5
μA
5
μA
Output Low Voltage
Output High Voltage
Integrated Pullup Resistor
PRES, PRES PINS
V_OL
V_OH
R_PU
I_OL = 2mA
I_OH = -15μA
Pullup to V_DD
0
0.3
V
0.75 x
V
V_DD
15
24
33
k

Input Low Voltage
V_{IL_PRES}
0.3 x
V
V_DD
Input High Voltage
Input Low Current
Input High Current
TIMING
V_{IH_PRES}
I_{IL_PRES}
I_{IH_PRES}
V_{IL_PRES} = 0V
V_{IH_PRES} = V_DD
0.7 x
V_DD
V
5
μA
5
μA
Activation Time
Deactivation Time
CLK to Card Start ^{Window Start}
Time
Window End
PRES/PRES Debounce Time
t_ACT
t_DEACT
t₃
t₅
t_DEBOUNCE
160
μs
80
μs
95
μs
160
8
ms
Note 1: Operation guaranteed at T_A = -40°C and T_A = +85°C, but not tested.
Note 2: I_{DD_IC} measures the amount of current used by the DS8023 to provide the smart card current minus the load.
Note 3: Stop mode is enabled by setting CMDVCC, 5V/3V, and 1_8V to logic-high.
Note 4: Parameters are guaranteed to meet all ISO 7816, GSM11-11, and EMV 2000 requirements. For the 1.8V card, the maximum
rise time and fall time is 10ns.
Note 5: Parameter is guaranteed to meet all ISO 7816, GSM11-11, and EMV 2000 requirements. For the 1.8V card, the minimimum
slew rate is 0.05V/µs and the maximum slew rate is 0.5V/µs.
Maxim Integrated
5