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TDA8004T - IC card interface

Description

The TDA8004T is a complete low cost analog interface for asynchronous smart cards.

It can be placed betw the card and the microcontroller with very few external components to perform all supply protection and control functions.

Features

  • 3 or 5 V supply for the IC (GND and VDD).
  • Step-up converter for VCC generation (separately powered with a 5 V ±10% supply, VDDP and PGND).
  • 3 specific protected half duplex bidirectional buffered I/O lines (C4, C7 and C8).
  • VCC regulation 5 V ±5% on 2 × 100 nF or 1 × 100 nF and 1 × 220 nF multilayer ceramic capacitors with low ESR, ICC < 65 mA at 4.5 V < VDDP < 6.5 V, current spikes of 40 nAs up to 20 MHz, with controlled rise and fall times, filtered overload.

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Full PDF Text Transcription

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INTEGRATED CIRCUITS DATA SHEET TDA8004T IC card interface Product specification Supersedes data of 1997 Nov 21 File under Integrated Circuits, IC02 1999 Dec 30 Philips Semiconductors Product specification IC card interface FEATURES • 3 or 5 V supply for the IC (GND and VDD) • Step-up converter for VCC generation (separately powered with a 5 V ±10% supply, VDDP and PGND) • 3 specific protected half duplex bidirectional buffered I/O lines (C4, C7 and C8) • VCC regulation 5 V ±5% on 2 × 100 nF or 1 × 100 nF and 1 × 220 nF multilayer ceramic capacitors with low ESR, ICC < 65 mA at 4.5 V < VDDP < 6.
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