产品特点 Features

• I²C-bus controlled IC card interface in a TFBGA64 package
• Supply voltage between 2.7 V and 5.5 V
• Dedicated microcontroller interface supply voltage (VDD(INTF))
• Shutdown mode ensures very low power consumption when the TDA8026 is inactive
• Programmable power reduction modes triggered when the card slots are inactive
• VCC(n) generation via DC-to-DC converter: two card slots can be fully loaded, the three others in reduced consumption mode
• Two clock input pins: CLKIN1 for card slot 1 and CLKIN2 for card slots 2 to 5
• Two transparent I/O lines on microcontroller side, one for card slot 1 and the other for card slots 2 to 5
• Five protected, half-duplex, bidirectional, buffered I/O lines with current limitation at ± 15 mA and a maximum frequency 1 MHz
• Two I²C-bus controlled auxiliary I/O lines
• VCC(n) regulation on all card slots at ICC ≤ 55 mA:
  • 5 V, 3 V or 1.8 V ± 5 %
  • Current spikes of 40 nAs up to 20 MHz for 5 V cards with controlled rise and fall times
  • Current limitation of approximately 100 mA
• Thermal protection and short-circuit protection on all card contacts
• Automatic activation and deactivation sequences initiated by the software or hardware in the event of a short-circuit, card take-off or voltage drop-out for VDD(INTF), VDD or VUP
• Enhanced ElectroStatic Discharge (ESD) protection on the card-side up to 6 kV
• 20 MHz clock input
• Card clock generation up to 20 MHz and dividable by 1, 2, 4 or 5 with synchronous frequency changes:
  • Stop, HIGH or LOW
  • Clock frequency between 1 MHz and 2.2 MHz in card low-power mode
  • Current limitation on pin CLK(n)
• RST(n) signal lines with current limitation at 20 mA, controlled by an embedded programmable clock pulse counter on asynchronous cards or by a register on synchronous cards
• ISO 7816-3 and EMV 4.2 payment systems compatibility
• VDD(INTF) supply voltage supervisor ensures correct communication between microcontroller and circuit; threshold internally fixed or set using an external resistor bridge
• VDD supply voltage supervisor for spike suppression during power-on and emergency deactivation at power-off; threshold internally fixed
• Card presence input with a 17.8 ms (typical) built-in debouncing system on card slots 1 and 2
• One interrupt signal (IRQN)

应用

• Point Of Sale terminals
• Multiple SAM contact readers

产品实物图