DS8113-RNG+ datasheet(3/17 Pages) MAXIM

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Smart Card Interface

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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

CLOCK SOURCE

Crystal Frequency

fXTAL

External crystal

MHz

fXTAL1

MHz

VIL_XTAL1

Low-level input on XTAL1

-0.3

0.3 x

VDD

XTAL1 Operating Conditions

VIH_XTAL1

High-level input on XTAL1

0.7 x

VDD

VDD +

0.3

External Capacitance for Crystal

CXTAL1,

CXTAL2

Internal Oscillator

fINT

2.7

MHz

SHUTDOWN TEMPERATURE

Shutdown Temperature

TSD

+150

°C

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

0.1

μs

Fall Time

tF_RST

CL = 30pF

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 4)

Fall Time

tF_CLK

CL = 30pF (Note 4)

Current Limitation

ICLK(LIMIT)

-70

+70

Clock Frequency

fCLK

Operational

MHz

Duty Factor

CL = 30pF

Card-Active Mode

Slew Rate

CL = 30pF

0.2

V/ns

VCC PIN

Output Low Voltage

VCC1

ICC = 1mA

0.3

Card-Inactive Mode

Output Current

ICC1

VCC = 0V

-1

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