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DS8023：Smart Card Interface

Robust Smart Card Communication IC Provides ±8kV ESD Protection and Supports Ultra-Low-Power 10nA Stop Mode

The DS8023 smart card interface IC is a low-cost, low-power, analog front-end for a smart card reader designed for all ISO 7816, EMV*, and GSM11-11 applications. The DS8023 supports 5V, 3V, and 1.8V smart cards, and provides an option for ultra-low stop-mode power consumption. The DS8023 is available in 28-pin TSSOP and SO packages, and can often be used as a replacement for the TDA8024 with little or no application changes. The DS8023 is designed to interface between a system microcontroller and the smart card interface, providing all power supply, protection, and level shifting required for IC card applications.

Key Features Analog Interface and Level Shifting for IC Card Communication ±8kV (min) ESD (IEC) Protection on Card Interface Pins Ultra-Low Stop-Mode Current, Less Than 10nA (typ) Internal IC Card-Supply Voltage Generation 5.0V ±5%, 80mA (max) 3.0V ±8%, 65mA (max) 1.8V ±10%, 30mA (max) Automatic Card Activation and Deactivation Controlled by Dedicated Internal Sequencer I/O Lines from Host Directly Level Shifted for Smart Card Communication Flexible Card Clock Generation, Supporting External Crystal Frequency Divided by 1, 2, 4, or 8 High-Current/Short-Circuit and High-Temperature Protection

DS8023: Typical Application Diagram Applications/Uses Access Control Automated Teller Machines Banking Applications Debit/Credit Payment Terminals Pay/Premium Television PIN Pads POS Terminals Set-Top Box Conditional Access Telecommunications

DataSheet

Parametrics

Quality and Environmental Data

• DS8023.pdf

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