Electronic Design

Smart-Card Interface Features 10-nA Stop Mode

The DS8313 is a smart-card interface that performs level translation between a host microcontroller and a 5-, 3-, or 1.8-V smart card while providing up to 80 mA for card operation. The device features the industry’s lowest-power stop mode— 10 nA typical—according to the company. In addition, it provides ±8-kV electrostatic discharge protection (IEC standard) to prevent damage to the application during card insertion and removal. Designed for ISO 7816 and B-CAS applications, the DS8313 is well-suited for pay/premium television, financial terminals, consumer set-top boxes, SIM card readers, and smart-card reader products. The interface is functionally compatible with devices such as the TDA8024 and the ST8024, which have higher power consumption and no stop mode. The device supports applications that do not require communication with the C4 and C8 smart-card pins. Operating temperature range is ?40°C to 85°C. The DS8313 comes in lead-free 28-pin SO and TSSOP packages. Prices start at $0.60 for 1000 pieces. An evaluation kit is currently in development. MAXIM INTEGRATED PRODUCTS, Sunnyvale, CA. (800) 998-8800.




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