TDA8034AT Overview
The TDA8034T/TDA8034AT is a cost-effective analog interface for asynchronous and synchronous smart cards operating at 5 V or 3 V. Using few external ponents, the TDA8034T/TDA8034AT provides all supply, protection and control functions between a smart card and the microcontroller.
TDA8034AT Key Features
- Integrated circuit smart card interface in an SO16 package
- 5 V or 3 V smart card supply
- One protected half-duplex bidirectional buffered I/O line (C7)
- VCC regulation
- 5 V 5 % or 3 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
- Thermal and short-circuit protection for all card contacts
- Automatic activation and deactiva