ST8024LCTR

更新时间： 2024-09-08 13:14:07

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意法半导体 - STMICROELECTRONICS		/
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23页	896K
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中文翻译

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数据手册

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ST8024LCTR 数据手册

ST8024

SMARTCARD INTERFACE

PRODUCT PREVIEW

IC CARD INTERFACE

3 OR 5 V SUPPLY FOR THE IC (V AND

GND)

THREE SPECIFICALLY PROTECTED

HALF-DUPLEX BI-DIRECTIONAL

BUFFERED I/O LINES TO CARD

CONTACTS C4, C7 AND C8

DC/DC CONVERTER FOR V

GENERATION SEPARATELY POWERED

SOP

TSSOP

FROM A 5 V ± 20% SUPPLY (V

PGND)

AND

DDP

3 OR 5 V ±5% REGULATED CARD SUPPLY

VOLTAGE (V ) WITH APPROPRIATE

DECOUPLING HAS THE FOLLOWING

CAPABILITIES:

NON-INVERTED CONTROL OF RST VIA PIN

RSTIN

ISO 7816, GSM11.11 AND EMV (PAYMENT

SYSTEMS) COMPATIBILITY

SUPPLY SUPERVISOR FOR SPIKE-KILLING

DURING POWER-ON AND POWER-OFF

AND POWER-ON RESET (THRESHOLD

FIXED INTERNALLY OR EXTERNALLY BY A

RESISTOR BRIDGE)

– I < 80 mA at V

= 4 to 6.5 V

DDP

– HANDLES CURRENT SPIKES OF 40 nAs

UP TO 20MHz

– CONTROLS RISE AND FALL TIMES

– FILTERED OVERLOAD DETECTION AT

APPROXIMATELY 120 mA

THERMAL AND SHORT-CIRCUIT

PROTECTION ON ALL CARD CONTACTS

AUTOMATIC ACTIVATION AND

DEACTIVATION SEQUENCES; INITIATED

BY SOFTWARE OR BY HARDWARE IN THE

EVENT OF A SHORT-CIRCUIT, CARD

BUILT-IN DEBOUNCE ON CARD

PRESENCE CONTACTS

ONE MULTIPLEXED STATUS SIGNAL OFF

DESCRIPTION

TAKE-OFF, OVERHEATING, V OR V

DROP-OUT

ENHANCED ESD PROTECTION ON CARD

SIDE (>6 kV)

26 MHz INTEGRATED CRYSTAL

OSCILLATOR

CLOCK GENERATION FOR CARDS UP TO

20 MHz (DIVIDED BY 1, 2, 4 OR 8

THROUGH CLKDIV1 AND CLKDIV2

SIGNALS) WITH SYNCHRONOUS

FREQUENCY CHANGES

The ST8024 is a complete low cost analog

interface for asynchronous 3V and 5V smart

cards. It can be placed between the card and the

microcontroller with few external components to

perform all supply protection and control

functions. ST8024 is a direct replacement of

ST8004.

Main applications are: smartcard readers for Set

Top Box, IC card readers for banking,

identification, Pay TV.

DDP

Table 1: Order Codes

Temperature

Type

Package

Comments

Range

ST8024CD

ST8024CDR

ST8024CTR (*)

-25 to 85 °C

SO-28 (Tube)

27 parts per tube / 12 tube per box

1000 parts per reel

SO-28 (Tape & Reel)

TSSOP28 (Tape & Reel)

2500 parts per reel

(*) Available on Request.

January 2005

Rev. 1

1/23

This is preliminary information on a new product now in development. Details are subject to change without notice.

12 3 4 5 6 7...23

中文翻译

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