DS8024-RJX+ datasheet(2/15 Pages) MAXIM

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Smart Card Interface

ABSOLUTE MAXIMUM RATINGS

RECOMMENDED DC OPERATING CONDITIONS

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

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

Voltage Range on VDD Relative to GND ...............-0.5V to +6.5V

Voltage Range on VDDA Relative to PGND ...........-0.5V to +6.5V

Voltage Range on CP1, CP2, and VUP

Relative to PGND...............................................-0.5V to +7.5V

Voltage Range on All Other Pins

Relative to GND......................................-0.5V to (VDD + 0.5V)

Maximum Junction Temperature .....................................+125°C

Continuous Power Dissipation (multilayer board, TA = +70°C)

TSSOP (derate 14mW/°C above +70°C) .................1117.3mW

SO (derate 16.7mW/°C above +70°C) .....................1355.9mW

Storage Temperature Range .............................-55°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Soldering Temperature (reflow) .......................................+260°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

POWER SUPPLY

Digital Supply Voltage

VDD

2.7

6.0

VCC = 5V, |ICC| < 80mA

4.0

6.0

Card Voltage-Generator Supply Voltage

VDDA

VCC = 5V, |ICC| < 30mA

3.0

6.0

VTH2

Threshold voltage (falling)

2.30

2.45

2.60

Reset Voltage Thresholds

VHYS2

Hysteresis

100

150

CURRENT CONSUMPTION

Active VDD Current 5V Cards

(Including 80mA Draw from 5V Card)

IDD_50V

ICC = 80mA, fXTAL = 20MHz,

fCLK = 10MHz, VDDA = 5.0V

215

Active VDD Current 5V Cards

(Current Consumed by DS8024 Only)

IDD_IC

ICC = 80mA, fXTAL = 20MHz,

fCLK = 10MHz, VDDA = 5.0V (Note 2)

135

Active VDD Current 3V Cards

(Including 65mA Draw from 3V Card)

IDD_30V

ICC = 65mA, fXTAL = 20MHz,

fCLK = 10MHz, VDDA = 5.0V

100

Active VDD Current 3V Cards

(Current Consumed by DS8024 Only)

IDD_IC

ICC = 65mA, fXTAL = 20MHz,

fCLK = 10MHz, VDDA = 5.0V (Note 2)

Inactive-Mode Current

IDD

Card inactive

500

μA

CLOCK SOURCE

Crystal Frequency

fXTAL

External crystal

MHz

fXTAL1

MHz

VIL_XTAL1

Low-level input on XTAL1 (Note 3)

-0.3

0.3 x

VDD

XTAL1 Operating Conditions

VIH_XTAL1

High-level input on XTAL1 (Note 3)

0.7 x

VDD

VDD +

0.3

External Capacitance for Crystal

CXTAL1,

CXTAL2

(Note 3)

Internal Oscillator

fINT

2.7

MHz

SHUTDOWN TEMPERATURE

Shutdown Temperature

TSD

(Note 3)

+150

°C

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