ST8034HN datasheet(1/31 Pages) STMICROELECTRONICS

Part #	ST8034HN

Description	24-pin smartcard interfaces

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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This is information on a product in full production.

October 2013

DocID024511 Rev 2

1/31

1

ST8034HN, ST8034HC

24-pin smartcard interfaces

Datasheet

- production data

Features

 Complete smartcard interface

 ISO 7816, NDS and EMV 4.3 payment systems

compatible

 Three protected half-duplex bidirectional

buffered I/O lines to the smartcard

 5 V, 3 V or 1.8 V supply voltage for the

smartcard (VCC), pin-selectable. Ensures

controlled VCC rise and fall times and provides

smart overload detection with glitch immunity.

 Very low power consumption in deep shutdown

mode

 Chip select function allows the device interface

to be isolated from the microcontroller signals -

allows parallel combination of the card

interface devices (ST8034HC)

 Card clock generation by integrated crystal

oscillator or from external clock source

 Card clock frequency up to 20 MHz,

programmable by CLKDIV1 and CLKDIV2 pins

(ST8034HN) or by CLKDIV pin (ST8034HC),

with synchronous frequency changes

 Automatic activation and deactivation

sequences initiated by the microcontroller

 Emergency deactivation sequences initiated

by a card supply short-circuit, card take-off,

falling VDD, VDDP, or VDD(INTF) or by the

interface device overheating

 Voltage supply supervisors

– with a fixed threshold (VDD, VDDP)

– with an external resistor divider to set the

VDD(INTF) threshold (PORADJ pin)

 Multipurpose card status signal OFF

 Non-inverted card reset pin RST driven by the

RSTIN input

 Thermal and short-circuit protection of all card

contacts

 Card presence detection contacts debounced

 Enhanced card side ESD protection of 8 kV

 Space saving QFN24 4 x 4 x 0.8 mm package

 Temperature range -25 to +85 °C

Applications

Smartcard readers for

 Set-top boxes

 Pay-TV

 Identification

 Banking

 Tachographs

QFN24 4 x 4 x 0.8 mm

www.st.com

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