ST8024L:Smart card interface

The ST8024L is a complete low-cost analog interface for asynchronous Class A, B, and C smartcards. It can be placed between the card and the microcontroller with few external components to perform all supply protection and control functions. The ST8024LCDR and ST8024LCTR are compatible with the ST8024 (with the exception of Vth(ext)rise/fallvalue).

Key Features

  • Designed to be compatible with the NDS conditional access system (except ST8024LTR)
  • ISO 7816, GSM11.11 and EMV 4.2 (payment systems) compatible
  • IC card interface
  • 3 V or 5 V supply for the ST8024L device (VDD )
  • Three specifically protected half-duplex bi-directional buffered I/O lines to card contacts C4, C7 and C8
  • Step-up converter for VCC generation separately powered by a 5 V ± 20% supply (VDDP and PGND)
  • 1.8 V ± 6.5%, 3 V or 5 V ± 5% regulated card supply voltage (VCC ) with appropriate decoupling has the following capabilities:
    • ICC < 80 mA at VDDP = 4.75 to 6.5 V
    • Handles current spikes of 40 nA up to 20 MHz
    • Controls rise and fall times
    • Filtered overload detection at ~120 mA
  • Thermal and short-circuit protection on all card contacts
  • 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 dropout
  • Enhanced ESD protection on card side (>6 kV)
  • 26 MHz integrated crystal oscillator
  • Built-in debounce on card presence contacts
  • One multiplexed status signalOFF
  • 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 divider)
Product Specifications
DescriptionVersionSize
DS6888: Smartcard interface5.0704 KB
Application Notes
DescriptionVersionSize
AN3275: Improving the performance of smartcard interfaces using the ST8024L1.11 MB
Sample & Buy
Part NumberPackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
ST8024LCDRSO-28Tape And Reel-25850.781000NECEAR99MALAYSIA
ST8024LACDRSO-28Tape And Reel-25850.781000NECEAR99MALAYSIA
ST8024LCTRTSSOP28 9.7 x 4.4Tape And Reel-25850.781000NECEAR99-
ST8024LTRTSSOP 20Tape And Reel-25850.651000NECEAR99-
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
ST8024LCDRSO-28IndustrialEcopack1md_lr-wspc-so28-wspc-.30-wspc-to-wspc-jedec_b9lr-wspc-uq85bb5-wspc-lock.pdf
md_lr-wspc-so28-wspc-.xml
ST8024LACDRSO-28IndustrialEcopack1
ST8024LCTRTSSOP28 9.7 x 4.4IndustrialEcopack3md_ym-wspc-tssop-wspc-28-wspc-body-wspc-4.4-wspc-pitch-wspc-0.65_mbym-wspc-uq85bb5_vers2_sdm_signed.pdf
md_ym-wspc-tssop-wspc-28-wspc-body-wspc-4.4-wspc-pitch-wspc-0.65_mbym-wspc-uq85bb5_vers2.xml
ST8024LTRTSSOP 20IndustrialEcopack1md_ya-wspc-tssop20body4.4pitch0.65_auya-wspc-uq85bb5.pdf
md_ya-wspc-tssop20body4.xml
Smartcard interface ST8024L
circuit_diagram_17709_thumbnail.png ST8024L
Improving the performance of smartcard interfaces using the ST8024L ST8024
md_lr-wspc-so28-wspc-.30-wspc-to-wspc-jedec_b9lr-wspc-uq85bb5-wspc-lock.pdf ST8024L
md_lr-wspc-so28-wspc-.xml ST8024L
md_ym-wspc-tssop-wspc-28-wspc-body-wspc-4.4-wspc-pitch-wspc-0.65_mbym-wspc-uq85bb5_vers2_sdm_signed.pdf ST8024L
md_ym-wspc-tssop-wspc-28-wspc-body-wspc-4.4-wspc-pitch-wspc-0.65_mbym-wspc-uq85bb5_vers2.xml ST8024L
md_ya-wspc-tssop20body4.4pitch0.65_auya-wspc-uq85bb5.pdf ST8024L
md_ya-wspc-tssop20body4.xml ST8024L