ST8034HC:24-pin smartcard interfaces ST8034HN and ST8034HC

The ST8034HN and ST8034HC devices are complete low-cost analog interfaces for asynchronous and synchronous smartcards operating at a supply voltage of 5 V, 3 V or 1.8 V. The ST8034HN and ST8034HC devices can be placed between the card and the microcontroller to provide all supply, protection, detection and control functions, with just a few external components.

Key Features

  • Complete smartcard interface
  • ISO 7816, NDS and EMV 4.3 payment systems compatible
  • Three protected half-duplex bidirectional buffered I/O lines to the smartcard
  • 5 V, 3 V or 1.8 V supply voltage for the smartcard (VCC ), pin-selectable. Ensures controlled VCC rise and fall times and provides smart overload detection with glitch immunity.
  • Very low power consumption in deep shutdown mode
  • Chip select function allows the device interface to be isolated from the microcontroller signals - allows parallel combination of the card interface devices (ST8034HC)
  • Card clock generation by integrated crystal oscillator or from external clock source
  • Card clock frequency up to 20 MHz, programmable by CLKDIV1 and CLKDIV2 pins (ST8034HN) or by CLKDIV pin (ST8034HC), with synchronous frequency changes
  • Automatic activation and deactivation sequences initiated by the microcontroller
  • Emergency deactivation sequences initiated by a card supply short-circuit, card take-off, falling VDD , VDDP , or VDD(INTF) or by the interface device overheating
  • Voltage supply supervisors
    • with a fixed threshold (VDD , VDDP )
    • with an external resistor divider to set the VDD(INTF) threshold (PORADJ pin)
  • Multipurpose card status signalOFF
  • Non-inverted card reset pin RST driven by the RSTIN input
  • Thermal and short-circuit protection of all card contacts
  • Card presence detection contacts debounced
  • Enhanced card side ESD protection of 8 kV
  • Space saving QFN24 4 x 4 x 0.8 mm package
  • Temperature range -25 to +85 °C
Product Specifications
DescriptionVersionSize
DS9616: 24-pin smartcard interfaces2.0961 KB
User Manuals
DescriptionVersionSize
UM1607: 24-pin smartcard interface ST8034HC demonstration board1.0875 KB
Solution Evaluation Tools
Part NumberManufacturerDescription
STEVAL-IPT007V1Smart card interface evaluation board based on the ST8034HC
Sample & Buy
Part NumberPackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
ST8034HCQRHVQFN24 4x4x0-85Tape And Reel-25850.781000NECEAR99MALAYSIA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
ST8034HCQRHVQFN24 4x4x0-85IndustrialEcopack3md_d8-wspc-hvqfn-4-4-0.85-24-wspc-sawn_hyd8-wspc-ui87cj5.pdf
md_d8-wspc-hvqfn-4-4-0.xml
24-pin smartcard interfaces ST8034HN
24-pin smartcard interface ST8034HC demonstration board ST8034HC
md_d8-wspc-hvqfn-4-4-0.85-24-wspc-sawn_hyd8-wspc-ui87cj5.pdf ST8034HC
md_d8-wspc-hvqfn-4-4-0.xml ST8034HN