Smart Card Interface

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

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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.
DS8023: Typical Application Diagram DS8023: Typical Application Diagram Enlarge+

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


  • Access Control
  • Automated Teller Machines
  • Banking Applications
  • Debit/Credit Payment Terminals
  • Pay/Premium Television
  • PIN Pads
  • POS Terminals
  • Set-Top Box Conditional Access
  • Telecommunications

See parametric specs for Smart Card Reader ICs (6)

Part NumberISO-7816InterfaceCard Supply Voltage
(See Notes)
DS8023 YesDigital I/O
SOIC (W)/28
$1.44 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Product Reliability Reports: DS8023.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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