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ST8004 - SMARTCARD INTERFACE

General Description

The ST8004 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.

Key Features

  • 3V or 5V supply for the IC.
  • Step-up converter for VCC generation.
  • 3 specific protected half duplex bi-directional buffered I/O lines.
  • Automatic activation and deactivation sequences.
  • Thermal and short-circuit protections on all card contacts.
  • 26MHz integrated crystal oscillator.
  • Clock generation for the card up to 20MHz with synchronous frequency changes.
  • ISO7816-3 compatible.
  • Enhanced ESD protection on card side.
  • SO-28 package.
  • Under volta.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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ST8004 Smartcard interface General features ■ 3V or 5V supply for the IC ■ Step-up converter for VCC generation ■ 3 specific protected half duplex bi-directional buffered I/O lines ■ Automatic activation and deactivation sequences ■ Thermal and short-circuit protections on all card contacts ■ 26MHz integrated crystal oscillator ■ Clock generation for the card up to 20MHz with synchronous frequency changes ■ ISO7816-3 compatible ■ Enhanced ESD protection on card side ■ SO-28 package ■ Under voltage lockout protection selectable to 3V or 2.2V ■ Supply supervisor integrated SO-28 Description The ST8004 is a complete low cost analog interface for asynchronous 3V and 5V smart cards.