Interface Chip suits set-top boxes and IC card readers.

Press Release Summary:

Model ST8004, for asynchronous 3 and 5 V smart cards, meets ISO 7816-3 standard and is compatible with NDS conditional access system. Analog chip has 3 protected, half-duplex, bi-directional buffered I/O lines and performs all supply protection and control functions when placed between smart card and microcontroller. Interface includes supply supervisor to control transients, ESD protection on card side, and thermal and short-circuit protection on all card contacts.

Original Press Release:

Low Cost Analog Smart Card Interface Chip from STMicroelectronics Designed to Work with NDS Conditional Access System

Geneva, March 5, 2004 - STMicroelectronics (NYSE: STM) has introduced a complete low-cost analog interface chip for asynchronous 3V and 5V smart cards. It is designed for use in set-top boxes and IC card readers for banking and identification.

The ST8004 meets the ISO 7816-3 standard and is compatible the NDS conditional access system. It performs all supply protection and control functions when placed between a smart card and a microcontroller. The interface includes a supply supervisor to control transients, enhanced ESD protection on the card side and both thermal and short-circuit protections on all card contacts.

The part has three specific protected half-duplex bi-directional buffered I/O lines. It includes automatic activation and deactivation sequences. It also includes a 26MHz crystal oscillator to allow the interface to generate clocks for the card of up to 20MHz, with synchronous frequency changes.

The ST8004 runs off a 3 or 5V supply and has a step-up converter for VCC generation. The part also offers under-voltage lockout protection, at 3 or 2.2V.

It is available in SO-28 and TSSOP28 packages. Pricing in 1K quantities is $1.2.

Further information on this device is available at:

The entire datasheet can be found at the following URL:

About STMicroelectronics
STMicroelectronics is a global leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivalled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence markets. The Company's shares are traded on the New York Stock Exchange, on Euronext Paris and on the Milan Stock Exchange. In 2003, the Company's net revenues were $7.24 billion and net earnings were $253 million. Further information on ST can be found at

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