产品概述
描述
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.
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所有功能
- SO-28 package
- Enhanced ESD protection on card side
- Supply supervisor integrated
- Under voltage lockout protection selectable to 3V or 2.2V
- Clock generation for the card up to 20MHz with synchronous frequency changes
- 26MHz integrated crystal oscillator
- 3V or 5V supply for the IC
- 3 specific protected half duplex bi-directional buffered I/O lines
- Step-up converter for VCC generation
- Thermal and short-circuit protections on all card contacts
- ISO7816-3 compatible
- Automatic activation and deactivation sequences
