Smart Card Interface ICs

General Description

The 73S8010C is a single smart card interface IC, compliant to the electrical requirements of ISO-7816-3 and EMV 4.0 (EMV2000) electrical specifications. It is controllable by an I2C bus, that makes it particularly suitable for applications that require several card interfaces, such as multiple SAM (Secure Access Modules) configurations in Point-of-Sales and payment terminals. For smart card reader applications traditionally using TDA8004 or TDA8002 type of devices, the Teridian 73S8010C and its I2C host interface is an advantageous replacement that requires fewer controller interface signals. It can be used in conjunction with any host microcontroller that can support the smart card protocol layer.

It is available either in a standard SO28 package, or in a 32-pin QFN package (5 x 5 x 0.8mm), making it the smallest solution available today in the market.


  • Card Interface
    Complies with ISO-7816-3 and EMV 4.0
    Provides at least 100mA to the card
    DC-DC Converter provides 3V/5V to the card from an external power supply input
    ISO-7816-3 Activation / Deactivation sequencer
    Emergency card deactivation upon hardware fault:
  • Card removal
  • Voltage supervision faults: Detection of voltage drops on VCC(card) and VPC power supply
  • Adjustable power supply (VDD) fault detection (2 resistors needed)
  • Card over-current (true current detection)
  • Die over-heating fault
    Card clock stop (high or low)
    Auxiliary I/O lines, for C4 / C8 contact signals
  • System Controller Interface
    Fast mode, 400kbps I2C slave bus
    8 possible devices in parallel with different I2C addresses
    One control register and one status register
    Interrupt output to the host for fault detection
    3 Digital inputs control the card activation / deactivation, card reset and card voltage
    4 Digital inputs control the card clock (division rate and card clock stop modes)
    1 Digital output (interrupt) to the system controller, allows the system controller to monitor the card presence and faults
  • Power Supply
    2.7V to 3.6V
  • 6KV ESD Protection on the card interface
  • Package: SO28 or 32QFN