General Description

The DS8313 smart card and SIM interface IC is a low-

cost, analog front-end for a smart card reader designed

for smart card applications that do not require the use

of the auxiliary card I/O contacts C4 and C8 (AUX1 and

AUX2). The DS8313 supports 5V, 3V, and 1.8V smart

cards. The absence of a charge pump reduces active

power consumption, and the DS8313 also supports an

ultra-low-power 10nA stop mode.

The DS8313 is designed to interface between a system

microcontroller and the smart card interface, providing

all power supply, protection, and level shifting required

for IC card applications.

The DS8314 is similar to the DS8313, but only uses one

analog (smart card) power supply. Therefore, the

device has reduced ability to provide power to smart

cards, but it is still sufficient for many applications,

allowing the DS8314 to drop into many TDA8024 sock-

ets without hardware changes.

The DS8313L and DS8314L use a negative polarity-pres-

ence detect instead of the default positive-polarity detect.

Both devices are available in a 28-pin SO package.

Applications

Pay/Premium Television

Access Control

Banking Applications

POS Terminals

Debit/Credit Payment Terminals

PIN Pads

Automated Teller Machines

Telecommunications

Features

♦ Analog Interface and Level Shifting for IC Card

Communication

♦ ±8kV (min) ESD (HBM) Protection on Card Interfaces

♦ Ultra-Low Stop-Mode Current, Less Than 10nA

Typical

♦ Internal IC Card Supply-Voltage Generation

5.0V ±5%, 80mA (max)

3.0V ±8%, 65mA (max)

1.8V ±10%, 30mA (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

♦ Low Active-Mode Current

Smart Card Interface

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Maxim Integrated Products

1

Ordering Information

19-4655; Rev 1; 5/09

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.

PART

TEMP RANGE

PIN-PACKAGE

DS8313-RRX+

-40

°C to +85°C

28 SO

DS8313L-RRX+*

-40

°C to +85°C

28 SO

DS8314-RRX+*

-40

°C to +85°C

28 SO

DS8314L-RRX+*

-40

°C to +85°C

28 SO

Note: Contact the factory for availability of other variants and

package options.

+

Denotes a lead(Pb)-free/RoHS-compliant package.

*

Future product—contact factory for availability.

Typical Application Circuit, Pin Configuration, and Selector

Guide appear at end of data sheet.

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