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Home » NEWEST Products » New by Manufacturer » STMicroelectronics » STM ST8024 Smartcard Interface ICs
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STMicroelectronics ST8024 Smartcard Interface ICs

STMicroelectronics ST8024L Smartcard Interface ICs are a complete low-cost analog interface for asynchronous Class A, B, and C smartcards. ST8024L Smartcard Interface ICs can be placed between the card and the microcontroller with few external components to perform all supply protection and control functions. STMicroelectronics ST8024L Smartcard Interface ICs are compatible with the ST8024 (with the exception of Vth(ext) rise/fall value). The ST8024L Smartcard Interface ICs are designed to be compatible with the NDS conditional access system and also the ISO 7816, GSM11.11 and EMV 4.2 payment systems.

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 bidirectional 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 dropoutEnhanced ESD protection on card side (>6 kV)

  • 26 MHz integrated crystal oscillator
  • Built-in debounce on card presence contacts
  • One multiplexed status signal OFF
  • 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)

Applications
  • Smartcard readers for set-top boxes
  • IC card readers for banking
  • Identification, pay TV

Additional Resources

Datasheet
ST8024 Product Info
Block Diagram
Block Diagram
  • STMicroelectronics
  • Semiconductors|Integrated Circuits|IC-Interface