Smart Card Interface

4

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RECOMMENDED DC OPERATING CONDITIONS (continued)

otherwise noted in the CONDITIONS column.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

4.65

5

5.25

4.75

5

5.25

2.78

3

3.24

1.64

1.8

1.98

4.55

5

5.25

4.75

5

5.25

2.78

3

3.24

1.64

1.8

1.98

5V card; current pulses of 40nC

with I < 200mA, t < 400ns,

f < 20MHz

4.6

5.4

3V card; current pulses of 24nC

with I < 200mA, t < 400ns,

f < 20MHz

2.75

3.25

Output Low Voltage

1.8V card; current pulses of 12nC

with I < 200mA, t < 400ns,

f < 20MHz

1.62

1.98

V

-80

-65

Output Current

-30

mA

Shutdown Current

Threshold

(Note 1)

120

mA

Card-Active Mode

Slew Rate

Up/down; C < 300nF (Note 5)

0.05

0.16

0.22

V/μs

DATA LINES (I/O AND I/OIN)

I/O

I/OIN Falling Edge Delay

(Note 1)

200

ns

Pullup Pulse Active Time

(Note 1)

100

ns

Maximum Frequency

1

MHz

Input Capacitance

10

pF

I/O PIN

Output Low Voltage

0

0.3

V

Output Current

0

-1

mA

Card-Inactive Mode

Internal Pullup

Resistor

9

11

19

k

Output Low Voltage

0

0.3

V

Output High

Voltage

V

Output Rise/Fall

Time

0.1

μs

Input Low Voltage

-0.3

+0.8

Card-Active Mode

Input High Voltage

1.5

V