Smart Card Interface 28-Pin SO T/R

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. Main applications are: smartcard readers for Set Top Box, IC card readers for banking, identification.

3V or 5V supply for the IC

Step-up converter for V_CC 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