Smart Card Interface

________________________________________________________________

Maxim Integrated Products

1

19-6220; Rev 2; 2/12

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

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

TDA8024 and is offered in 28-pin TSSOP and SO pack-

ages.

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

o Analog Interface and Level Shifting for IC Card

Communication

o ±8kV (min) ESD (IEC) Protection on Card

Interfaces

o Internal IC Card Supply-Voltage Generation:

5.0V ±5%, 80mA (max)

3.0V ±8%, 65mA (max)

o Automatic Card Activation and Deactivation

Controlled by Dedicated Internal Sequencer

o I/O Lines from Host Directly Level Shifted for

Smart Card Communication

o Flexible Card Clock Generation, Supporting

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

o 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(Pb)-free/RoHS-compliant package.

/V denotes an automotive-qualified part.

EMV is a registered trademark of 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-RJX/V+

-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

28

27

26

25

24

23

22

AUX2IN

AUX1IN

I/OIN

XTAL2

TOP VIEW

DS8024

XTAL1

OFF

GND

20 RSTIN

19 CMDVCC

18 N.C.

16 RST

15 CLK

5V/3V

CLKDIV2

CLKDIV1

CP1

PRES

PRES

I/O

AUX2

AUX1

4

1

2

3

5

6

7

8

9

10

11

12

13

14

CGND

CP2

SO/TSSOP

Pin Configuration