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DS8024

Smart Card Interface

________________________________________________________________

Maxim Integrated Products

Rev 1; 8/08

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

General Description

The DS8024 smart card interface IC is a low-cost, analog

front-end for a smart card reader, designed for all ISO

7816, EMV*, and GSM11-11 applications. The DS8024 is

a pin-for-pin drop-in replacement for the NXP TDA8024

and is offered in 28-pin TSSOP and SO packages.

Applications requiring support for 1.8V smart cards or

requiring low power should consider the DS8113, which

achieves lower active- and stop-mode power with mini-

mal changes to application hardware and software.

Applications

Set-Top Box Conditional Access

Access Control

Banking Applications

POS Terminals

Debit/Credit Payment Terminals

PIN Pads

Automated Teller Machines

Telecommunications

Pay/Premium Television

Features

♦ Analog Interface and Level Shifting for IC Card

Communication

♦ 8kV (min) ESD (IEC) Protection on Card Interfaces

♦ Internal IC Card Supply-Voltage Generation:

5.0V ±5%, 80mA (max)

3.0V ±8%, 65mA (max)

♦ Automatic Card Activation and Deactivation

Controlled by Dedicated Internal Sequencer

♦ I/O Lines from Host Directly Level Shifted for

Smart Card Communication

♦ Flexible Card Clock Generation, Supporting

External Crystal Frequency Divided by 1, 2, 4, or 8

♦ High-Current, Short-Circuit and High-Temperature

Protection

Ordering Information

Note: Contact the factory for availability of other variants and

package options.

Denotes a lead-free/RoHS-compliant package.

*EMV is a trademark owned by EMVCo LLC. EMV Level 1 library and hardware reference design available. Contact factory for details.

Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be

simultaneously available through various sales channels. For information about device errata, go to: www.maxim-ic.com/errata

PART TEMP RANGE PIN-PACKAGE

DS8024-RJX+ -40°C to +85°C 28 TSSOP

DS8024-RRX+ -40°C to +85°C 28 SO

Selector Guide appears at end of data sheet.

PGND

AUX2IN

AUX1IN

I/OIN

XTAL2

TOP VIEW

DS8024

XTAL1

OFF

GND

21 V

20 RSTIN

19 CMDVCC

18 N.C.

17 V

16 RST

15 CLK

5V/3V

CLKDIV2

CLKDIV1

CP1

DDA

PRES

I/O

AUX2

AUX1

14CGND

CP2

SO/TSSOP

Pin Configuration

1 2 3 4 5 6 ... 14 15

Smart Card Interface 1

Inhaltsverzeichnis

Seite 1 - Smart Card Interface

DS8024Smart Card Interface________________________________________________________________Maxim Integrated Products1Rev 1; 8/08For pricing, delivery,

Seite 2

DS8024Smart Card Interface10 ______________________________________________________________________________________ATRCMDVCCRSTRSTINCLKVCCI/OI/OINt0t1

Seite 3

DS8024Smart Card Interface______________________________________________________________________________________ 11Deactivation SequenceWhen the host

Seite 4

DS8024Smart Card Interface12 ______________________________________________________________________________________DEBOUNCE DEBOUNCEVCCPRESOFFDEACTIVA

Seite 5

DS8024Smart Card Interface______________________________________________________________________________________ 13DS8024MAXQ1103100nF 100nF+3.3V+3.3V

Seite 6

DS8024Smart Card Interface14 ______________________________________________________________________________________Applications InformationPerformance

Seite 7

DS8024Smart Card InterfaceMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No ci

Seite 8

DS8024Smart Card Interface2 _______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSRECOMMENDED

Seite 9

DS8024Smart Card Interface_______________________________________________________________________________________ 3RECOMMENDED DC OPERATING CONDITIONS

Seite 10

DS8024Smart Card Interface4 _______________________________________________________________________________________RECOMMENDED DC OPERATING CONDITIONS

Seite 11

DS8024Smart Card Interface_______________________________________________________________________________________ 5RECOMMENDED DC OPERATING CONDITIONS

Seite 12

DS8024Smart Card Interface6 _______________________________________________________________________________________Pin DescriptionPIN NAME FUNCTION1,

Seite 13

DS8024Smart Card Interface_______________________________________________________________________________________ 7Detailed DescriptionThe DS8024 is a

Seite 14

DS8024Smart Card Interface8 _______________________________________________________________________________________The DS8024 card interface remains i

Seite 15

DS8024Smart Card Interface_______________________________________________________________________________________ 9When a card is inserted into the re

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