DS8007 datasheet(3/41 Pages) MAXIM

Part #	DS8007

Description	Multiprotocol Dual Smart Card Interface 8kV (min) ESD Protection on Card Interfaces

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Manufacturer	MAXIM [Maxim Integrated Products]

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Multiprotocol Dual Smart Card Interface

_______________________________________________________________________________________

3

ELECTRICAL CHARACTERISTICS (continued)

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Alarm Pulse Width

tW

CDELAY = 22nF

10

ms

External crystal

4

20

External Clock Frequency

fXTAL

External oscillator

0

20

MHz

Internal Oscillator

fINT

1.6

2.5

3.7

MHz

3x step-up

5.7

Voltage on VUP Pin

VUP

2x step-up

4.1

V

Voltage Detection of VDDA for 2x,

3x Step-Up

VDET

3.35

3.50

3.60

V

Shutdown Temperature

TSD

+150

°C

Output Low

Voltage

VOLRST

IOLRST = 1mA

0

0.3

V

Card

Inactive

Mode

Output Current

IOLRST

VOLRST = 0V

0

-1

mA

Output Low

Voltage

VOLRSTL

IOLRST = +200μA

0

0.3

Output High

Voltage

VOHRSTH

IOHRST = -200μA

VCCx –

0.5

VCCx

V

Rise Time

tRRST

CL = 30pF

0.1

Fall Time

tFRST

CL = 30pF

0.1

μs

Shutdown

Current

IRST(SD)

-25

RSTx

Pins

Card

Active

Mode

Current

Limitation

IRST(LIMIT)

-25

+25

mA

Output Low

Voltage

VOLCLK

IOLCLK = 1mA

0

0.3

V

Card

Inactive

Mode

Output Current

IOLCLK

VOLCLK = 0V

0

-1

mA

Output Low

Voltage

VOLCLK

IOLCLK = +200μA

0

0.3

Output High

Voltage

VOHCLK

IOHCLK = -200μA

VCCx –

0.5

VCCx

V

Rise Time

tRCLK

CL = 30pF (Note 2)

8

Fall Time

tFCLK

CL = 30pF (Note 2)

8

ns

Card

Active

Mode

Current

Limitation

ICLK(LIMIT)

-70

+70

mA

Idle configuration (1MHz)

1

1.85

CLKx

Pins

Clock Frequency

fCLK

Operational

0

10

MHz

Duty Factor

CL = 30pF

45

55

%

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