DS8024_V3 Datasheet, PDF (5/15 Pages) Maxim Integrated Products – Smart Card Interface

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
CONTROL PINS (CLKDIV1, CLKDIV2, CMDVCC, RSTIN, 5V/3V)
CONDITIONS
MIN TYP MAX UNITS
Input Low Voltage
V_IL
0.3 x
-0.3
V_DD
V
Input High Voltage
Input Low Current
Input High Current
Integrated Pullup Resistor
INTERRUPT OUTPUT PIN (OFF)
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
0.7 x
V_DD
V_DD +
0.3
V
5
μA
5
μA
50
85 120
k

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_DD
V
12
20
28
k

Input Low Voltage
V_{IL_PRES}
0.3 x
V
V_DD
Input High Voltage
V_{IH_PRES}
0.7 x
V
V_DD
Input Low Current
Input High Current
TIMING
I_{IL_PRES}
I_{IH_PRES}
V_{IL_PRES} = 0V
V_{IH_PRES} = V_DD
40
μA
40
μA
Activation Time
Deactivation Time
CLK to Card Start
Time
Window Start
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: IDD_IC measures the amount of current used by the DS8024 to provide the smart card current minus the load.
Note 3: Guaranteed by design, but not production tested.
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