DS8024-RJXSLASHV+ datasheet(3/15 Pages) MAXIM

3 / 15 page

Smart Card Interface

RECOMMENDED DC OPERATING CONDITIONS (continued)

(VDD = +3.3V, VDDA = +5.0V, TA = +25°C, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

RST PIN

Output Low Voltage

VOL_RST1

IOL_RST = 1mA

0.3

Card-Inactive Mode

Output Current

IOL_RST1

VO_LRST = 0V

-1

Output Low Voltage

VOL_RST2

IOL_RST = 200μA

0.3

Output High

Voltage

VOH_RST2

IOH_RST = -200μA

VCC -

0.5

VCC

Rise Time

tR_RST

CL = 30pF (Note 3)

0.1

μs

Fall Time

tF_RST

CL = 30pF (Note 3)

0.1

μs

Shutdown Current

Threshold

IRST(SD)

-20

Current Limitation

IRST(LIMIT)

-20

+20

Card-Active Mode

RSTIN to RST Delay

tD(RSTIN-RST)

μs

CLK PIN

Output Low Voltage

VOL_CLK1

IOLCLK = 1mA

0.3

Card-Inactive Mode

Output Current

IOL_CLK1

VOLCLK = 0V

-1

Output Low Voltage

VOL_CLK2

IOLCLK = 200μA

0.3

Output High

Voltage

VOH_CLK2

IOHCLK = -200μA

VCC -

0.5

VCC

Rise Time

tR_CLK

CL = 30pF (Note 3)

Fall Time

tF_CLK

CL = 30pF (Note 3)

Current Limitation

ICLK(LIMIT)

-70

+70

Clock Frequency

fCLK

Operational (Note 3)

MHz

Duty Factor

CL = 30pF (Note 3)

Card-Active Mode

Slew Rate

CL = 30pF (Note 3)

0.2

V/ns

VCC PIN

Output Low Voltage

VCC1

ICC = 1mA

0.3

Card-Inactive Mode

Output Current

ICC1

VCC = 0V

-1

ICC(5V) < 80mA

4.75

5.00

5.25

ICC(3V) < 65mA

2.78

3.00

3.22

5V card: current pulses of 40nC

with I < 200mA, t < 400ns,

f < 20MHz (Note 3)

4.6

5.4

Output Low Voltage

VCC2

3V card: current pulses of 24nC

with I < 200mA, t < 400ns,

f < 20MHz (Note 3)

2.75

3.25

VCC(5V) = 0 to 5V

-80

Output Current

ICC2

VCC(3V) = 0 to 3V

-65

Shutdown Current

Threshold

ICC(SD)

120

Card-Active Mode

Slew Rate

VCCSR

Up/down, C < 300nF

0.05

0.16

0.22

V/μs

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