73S8009C

Versatile Power Management and Smart Card Interface IC

The 73S80xx Family of Smart Card Interface ICs Offer Best-in-Class Performance with Flexible Package and Supply Options

Data Sheet (Rev. 2)
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Part Details

  • Compliant with Key Standards: ISO 7816, EMV 4.1
  • Transparent Interface
    • Host Processor Drives/Reads Each Smart Card Signal Image Directly
    • Automated Card Emergency Detection
  • Requires Two Distinct Power Supplies
    • +3.3V (2.7V to approximately 3.6V)
    • +5.0V (4.75V/4.85V(2) to approximately 6.0V)
  • VCC card and VDD Generation
    • Selectable Smart Card Voltage: 1.8V, 3V, or 5V
    • VCC Card Regulator
    • VDD Regulator (+3.3V)
  • Power Supply and Power Management
    • USB Bus Power
    • VBUS Supply Input (+4.4V to +5.5V Range)
    • Priority over VBAT (Automatic Switch to DC-DC Converter Input)
    • Always On When VBUS is Present
  • Battery Power
    • VBAT Secondary Supply Input (+4.0V to +6.5V Range)
    • Automatic Switch (Instead of VBUS) When USB Bus Power is Disconnected
  • Alternate Battery Power
    • VPC (+2.7V to +6.5V Range) Can Be Used Either Through a Diode or Directly When VBUS and VBAT are Not Used
    • Priority Over VBAT (Automatic Switch to DC-DC Converter Input)
  • ON/OFF Switch
    • Input for SPST Momentary Switch to Ground
    • Can Be Replaced by a Digital Output (Controlled from Host Processor)
73S8009C
Versatile Power Management and Smart Card Interface IC
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Documentation

Data Sheet 1

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