High-Integrated and Low-Power Smart Card Interface

Overview

The TDA8035 is the cost efficient successor of the established integrated contact smart card reader IC TDA8024. It offers a high level of security for the card by performing current limitation, short-circuit detection, ESD protection as well as supply supervision. The current consumption during the standby mode of the contact reader is very low as it operates in the 3 V supply domain. The TDA8035 is therefore the ideal component for a power efficient contact reader.

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Features

Protection of the contact smart card

Thermal and short-circuit protection on all card contacts
V_CC regulation:
- 5 V, 3 V, 1.8 V ± 5 % on 2 × 220 nF multilayer ceramic capacitors with low ESR
- 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, filtered overload detection is approximately 120 mA
Automatic activation and deactivation sequences initiated by software or by hardware in the event of a short-circuit, card take-off, overheating, falling V_REG V_DD(INTF),V_DDP
Enhanced card-side ElectroStatic Discharge (ESD) protection of (> 8 kV)
Supply supervisor for killing spikes during power on and off:
- threshold internally fixed
- externally by a resistor bridge

Easy integration into your contact reader

SW compatible to TDA8024 and TDA8034
5 V, 3 V, 1.8 V smart card supply
DC-to-DC converter for V_CC generation separately powered from 2.7 V to 5.5 V supply (V_DDP and GNDP)
Very low power consumption in Deep Shutdown mode
Three protected half-duplex bidirectional buffered I/O lines (C4, C7 and C8)
External clock input up to 26 MHz
Card clock generation up to 20 MHz using pins CLKDIV1 and CLKDIV2 with synchronous frequency changes of f_XTAL, f_XTAL/2, f_XTAL/4, f_XTAL/8
Non-inverted control of pin RST using pin RSTIN
Built-in debouncing on card presence contact
Multiplexed status signal using pin OFFN
Chip Select digital input for parallel operation of several TDA8035 ICs.

Other

HVQFN32 package
Compliant with ISO 7816, NDS and EMV 4.3 (*) payment systems

(*) for C2 version

Target Applications

Pay TV
Electronic payment
Identification
IC card readers for banking

MoreLess

Features

Protection of the contact smart card

Thermal and short-circuit protection on all card contacts
V_CC regulation:
- 5 V, 3 V, 1.8 V ± 5 % on 2 × 220 nF multilayer ceramic capacitors with low ESR
- 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, filtered overload detection is approximately 120 mA
Automatic activation and deactivation sequences initiated by software or by hardware in the event of a short-circuit, card take-off, overheating, falling V_REG V_DD(INTF),V_DDP
Enhanced card-side ElectroStatic Discharge (ESD) protection of (> 8 kV)
Supply supervisor for killing spikes during power on and off:
- threshold internally fixed
- externally by a resistor bridge

Easy integration into your contact reader

SW compatible to TDA8024 and TDA8034
5 V, 3 V, 1.8 V smart card supply
DC-to-DC converter for V_CC generation separately powered from 2.7 V to 5.5 V supply (V_DDP and GNDP)
Very low power consumption in Deep Shutdown mode
Three protected half-duplex bidirectional buffered I/O lines (C4, C7 and C8)
External clock input up to 26 MHz
Card clock generation up to 20 MHz using pins CLKDIV1 and CLKDIV2 with synchronous frequency changes of f_XTAL, f_XTAL/2, f_XTAL/4, f_XTAL/8
Non-inverted control of pin RST using pin RSTIN
Built-in debouncing on card presence contact
Multiplexed status signal using pin OFFN
Chip Select digital input for parallel operation of several TDA8035 ICs.