DS8005

RECOMMENDED FOR NEW DESIGNS

Smart Card Interface

Dual SIM Card Interface Multiplexes Access to Two Smart Cards for Lower Power, Board Space, and BOM Cost

Data Sheet (Rev. 2) Product Selection Table
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Overview

  • Analog Interface and Level Shifting for IC Card Communication
  • ±8kV (min) ESD (HBM) Protection on Card Interfaces
  • Ultra-Low Stop-Mode Current, Less Than 10nA Typical
  • 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
  • Low Active-Mode Current
  • Internal Multiplexing Allows One ISO 7816 UART Implementation to Control Two Smart Card Sockets

The DS8005 dual smart card interface is a low-cost, dual analog front-end for an IC card reader interface that needs to communicate with two smart cards in a mutually exclusive fashion. The analog interface is designed for use in ISO 7816, EMV®, and B-CAS applications. The device is functionally similar to two DS8024s with external multiplexing to select the active interface, but also includes low power and 1.8V card support. Additionally, the device is designed for applications where the C4/C8 (AUX1/AUX2) contacts are not required on either card interface.

The device is provided in a 28-pin SO and TSSOP packages. The pinout is backwards compatible with the DS8313, allowing applications to use the same footprint and PCB for applications that communicate with either one or two smart cards.

The device is designed to be used with microcontrollers that contain an ISO 7816 UART, or have the bandwidth to run this protocol in software by bit-banging IO ports. If the microcontroller does not have the capability of running the ISO 7816 UART, the DS8007 is the more appropriate product selection.

Applications

  • Access Control
  • Financial Terminals
  • Pay Television
  • Set-Top Box Conditional Access
  • Telecommunications
DS8005
Smart Card Interface
DS8005: Functional Diagram
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Level Translators & Buffers 5
DS8313
Obsolete Smart Card Interface
DS8007
PRODUCTION Multiprotocol Dual Smart Card Interface
DS8023
PRODUCTION Smart Card Interface
DS8024
PRODUCTION Smart Card Interface
DS8113
PRODUCTION Smart Card Interface
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Evaluation Kits

DS8005-KIT

Evaluation Kit for the DS8005

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Features and Benefits

  • Quickly Develop Smart Card Applications Using Maxim's Example Code and Easily Port to Any MAXQ RISC Microcontroller
  • 2-Line LCD Screen for Graphical User Interface
  • USB Interface for Prototyping USB Card Reader Applications
  • Two Card Sockets (One Full-Size Socket and One SIM Socket) for Prototyping Smart Card Applications
  • Single 5V Power-Supply Input with an On-Board 3.3V Regulator
  • Card Interface Pins Brought Out to Headers for Customer Card Socket
  • Pushbuttons for Reset, Interrupt, and Application Control
  • Level-Shifted RS-232 Interface
  • Schematics and BOM Provides a Proven Solution for New Designs
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The DS8005 evaluation kit (EV kit) conveniently evaluates the capabilities of the DS8005 dual smart card interface chip. The EV kit includes a MAXQ622 16-bit RISC microcontroller to control the smart card interface. One full-size socket, as well as one SIM card socket, is included to communicate with a 1.8V, 3V, or 5V IC card. An LCD screen and/or serial port can provide detailed feedback on program operations and aids in debugging applications. In addition, the MAXQ622 has a built-in USB serial interface engine (SIE) to allow USB card reader applications.

Applications

  • Access Control
  • Financial Terminals
  • Pay Television
  • Set-Top Box Conditional Access
  • Telecommunications
DS8005-KIT
Evaluation Kit for the DS8005

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