Datasheet > ST8034HN

ST8034HN

更新时间： 2024-09-15 01:19:15

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意法半导体 - STMICROELECTRONICS		/
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描述
24-pin smartcard interfaces

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数据手册

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ST8034HN 数据手册

ST8034HN, ST8034HC

24-pin smartcard interfaces

Datasheet - production data

 Automatic activation and deactivation

sequences initiated by the microcontroller

 Emergency deactivation sequences initiated

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

falling V , V

, or V

or by the

DDP

DD(INTF)

interface device overheating

 Voltage supply supervisors

– with a fixed threshold (V , V

)

DDP

– with an external resistor divider to set the

threshold (PORADJ pin)

DD(INTF)

 Multipurpose card status signal OFF

 Non-inverted card reset pin RST driven by the

RSTIN input

QFN24 4 x 4 x 0.8 mm

 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

Features

 Complete smartcard interface

 ISO 7816, NDS and EMV 4.3 payment systems

compatible

Applications

 Three protected half-duplex bidirectional

buffered I/O lines to the smartcard

Smartcard readers for

 Set-top boxes

 Pay-TV

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

smartcard (V ), pin-selectable. Ensures

controlled V rise and fall times and provides

 Identification

 Banking

smart overload detection with glitch immunity.

 Very low power consumption in deep shutdown

mode

 Tachographs

 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

October 2013

DocID024511 Rev 2

1/31

This is information on a product in full production.

www.st.com

12 3 4 5 6 7...31

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