ST8024:Smartcard interface

The ST8024 is a complete low cost analog interface for asynchronous 3 V and 5 V smart cards. It can be placed between the card and the microcontroller with few external components to perform all supply protection and control functions. ST8024 is a direct replacement of ST8004.

Main applications are: smartcard readers for settop- box, IC card readers for banking, identification, pay TV.

Key Features

  • 26 MHz integrated crystal oscillator
  • Enhanced ESD protection on card side (> 6 kV)
  • Non-inverted control of RST via pin RSTIN
  • Clock generation for cards up to 20 MHz (divided by 1, 2, 4 or 8 through CLKDIV1 and CLKDIV2 signals) with synchronous frequency changes
  • Supply supervisor for spike-killing during power-on and power-off and power-on reset (threshold fixed internally or externally by a resistor bridge)
  • ISO 7816, GSM11.11 and EMV (payment systems) compatibility
  • One multiplexed status signal off
  • Built-in debounce on card presence contacts
  • Thermal and short-circuit protection on all card contacts
  • 3 or 5 V ± 5 % regulated card supply voltage (VCC ) with appropriate decoupling has the following capabilities:Icc < 80 mA at VDD P = 4 to 6.5 VHandles current spikes of 40 nA up to 20 MHzControls rise and fall timesFiltered overload detection at approximately 120 mA
  • Designed to be compatible with the NDS conditional access system
  • 3 or 5 V supply for the IC (VDD and GND)
  • IC card interface
  • DC-DC converter for VCC generation separately powered from a 5 V ± 20% supply (VDD P and PGND)
  • Automatic activation and deactivation sequences; initiated by software or by hardware in the event of a short-circuit, card take-off, overheating, VDD or VDDP drop-out
  • Three specifically protected half-duplex bidirectional buffered I/O lines to card contacts C4, C7 and C8
Product Specifications
DescriptionVersionSize
DS4207: Smartcard interface8.11 MB
Application Notes
DescriptionVersionSize
AN3275: Improving the performance of smartcard interfaces using the ST8024L1.11 MB
AN2269: Using the ST8024 smartcard interface1.3813 KB
Sample & Buy
Part NumberPackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
ST8024CDRSO-28Tape And Reel-25850.911000NECEAR99MALAYSIA
ST8024CTRTSSOP28 9.7 x 4.4Tape And Reel-25850.851000NECEAR99MALAYSIA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
ST8024CDRSO-28IndustrialEcopack1md_lr-wspc-so-wspc-28-wspc-.30-wspc-to-wspc-jedec_mblr-wspc-ul80j51-wspc-lock.pdf
md_lr-wspc-so-wspc-28-wspc-.xml
ST8024CTRTSSOP28 9.7 x 4.4IndustrialEcopack3md_ym-wspc-tssop-wspc-28-wspc-body-wspc-4.4-wspc-pitch-wspc-0.65_mbym-wspc-ul80j51.pdf
md_ym-wspc-tssop-wspc-28-wspc-body-wspc-4.xml
Smartcard interface ST8024
circuit_diagram_11175_thumbnail.png ST8024
Improving the performance of smartcard interfaces using the ST8024L ST8024
Using the ST8024 smartcard interface ST8024
md_lr-wspc-so-wspc-28-wspc-.30-wspc-to-wspc-jedec_mblr-wspc-ul80j51-wspc-lock.pdf ST8024
md_lr-wspc-so-wspc-28-wspc-.xml ST8024
md_ym-wspc-tssop-wspc-28-wspc-body-wspc-4.4-wspc-pitch-wspc-0.65_mbym-wspc-ul80j51.pdf ST8024
md_ym-wspc-tssop-wspc-28-wspc-body-wspc-4.xml ST8024