TDA8034HN/C1,118

The TDA8034HN is a cost-effective analog interface for asynchronous and synchronous smart cards operating at 5 V, 3 V or 1.8 V. Using few external components, the TDA8034HN provides all supply, protection and control functions between a smart card and the microcontroller.

• 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)
• V_CC 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 (V_CC = 5 V and 3 V) or 15 nA/s (V_CC =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 V_DD, V_DD(INTF) or V_DDP
• Enhanced card-side ElectroStatic Discharge (ESD) protection of > 8 kV
• External clock input up to 26 MHz connected to p