TDA8034HN/C1,118

The NXP Semiconductors TDA8034HN/C1,118 is a cost-effective analog interface IC designed for asynchronous and synchronous smart cards operating at 5 V, 3 V, or 1.8 V. It provides essential supply, protection, and control functions between a smart card and a microcontroller, requiring few external components.

Key features include support for multiple smart card voltages (1.8V, 3V, 5V), low power consumption in deep shutdown mode, and three protected bidirectional I/O lines. The device offers VCC regulation with ±5% tolerance and handles current spikes up to 20 MHz. It incorporates thermal and short-circuit protection for all card contacts, along with automatic activation/deactivation sequences triggered by various fault conditions.

Enhanced card-side ESD protection exceeds 8 kV. The TDA8034HN/C1,118 supports external clock input up to 26 MHz and card clock generation up to 20 MHz. It is compatible with ISO 7816, NDS, and EMVCo4.3 payment systems. The IC is supplied in a 24-HVQFN package with an exposed pad, suitable for surface mounting.

Applications for this smart card interface include pay TV, electronic payment systems, and identification devices. Its robust design and comprehensive protection features make it suitable for demanding smart card environments.