产品特点 Features

• Integrated circuit smart card interface in an HVQFN24 package
• 5 V, 3 V or 1.8 V smart card supply
• Very low power consumption in Deep Shutdown mode
• Three protected half-duplex bidirectional buffered I/O lines (C4, C7 and C8)
• VCC regulation:
  • 5 V, 3 V or 1.8 V ± 5 % using two low ESR multilayer ceramic capacitors: one of 220 nF and one of 470 nF
  • current spikes of 40 nA/s (VCC = 5 V and 3 V) or 15 nA/s (VCC =1.8 V) up to 20 MHz, with controlled rise and fall times and filtered overload detection of approximately 120 mA
• Thermal and short-circuit protection for all card contacts
• Automatic activation and deactivation sequences triggered by a short-circuit, card take-off, overheating, falling VDD, VDD(INTF) or VDDP
• Enhanced card-side ElectroStatic Discharge (ESD) protection of > 6 kV
• External clock input up to 26 MHz connected to pin XTAL1
• Card clock generation up to 20 MHz using pins CLKDIV1 and CLKDIV2 with synchronous frequency changes of Fxtal, 1?2 Fxtal, 1?4 Fxtal or 1?8 Fxtal
• Non-inverted control of pin RST using pin RSTIN
• Compatible with ISO 7816, NDS and EMV 4.2 payment systems
• Supply supervisor for killing spikes during power on and off:
  • using a fixed threshold
  • using an external resistor bridge with threshold adjustment
• Built-in debouncing on card presence contacts (typically 8 ms)
• Multiplexed status signal using pin OFFN

应用

• Pay TV
• Electronic payment
• Identification
• Bank card readers

产品实物图