Dual IC Card Interface | NXP Semiconductors

Overview

The TDA8020HL is a one-chip dual smart card interface. Controlled by the I²C-bus, it guarantees conformity to ISO 7816 or EMV2000 with very few external components.

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Features

Two independent 6 contacts smart card interfaces
Supply voltage to the cards: V_CC = 5 V and I_CC up to 60 mA or 3 V +-5pct. and I_CC up to 55 mA
Integrated DC-to-DC converter (doubler, tripler or follower) for allowing power supply from 2.7 to 6.5 V
Independent supply voltage for interface signals (from 1.5 to 6.5 V)
Control and status via the I²C-bus
Four possible devices in parallel due to two I²C-bus address pins
Electrical specifications according to ISO 7816 or EMV2000
Automatic activation and deactivation sequences by means of integrated sequencers
Automatic clock count and reset toggling during warm or cold reset
Interrupt request output to the controller
6 kV ESD protection on cards contacts
Automatic emergency deactivation in the event of supply drop-out, overload, overheating, card take-off or DC-to-DC malfunctioning
Current limitation on pins CLK, RST, I/O and V_CC
Integrated voltage supervisor for power-on reset and drop-out detection.

Target Applications

Set top boxes
Banking terminals
Internet terminals.

MoreLess

Features

Two independent 6 contacts smart card interfaces
Supply voltage to the cards: V_CC = 5 V and I_CC up to 60 mA or 3 V +-5pct. and I_CC up to 55 mA
Integrated DC-to-DC converter (doubler, tripler or follower) for allowing power supply from 2.7 to 6.5 V
Independent supply voltage for interface signals (from 1.5 to 6.5 V)
Control and status via the I²C-bus
Four possible devices in parallel due to two I²C-bus address pins
Electrical specifications according to ISO 7816 or EMV2000
Automatic activation and deactivation sequences by means of integrated sequencers
Automatic clock count and reset toggling during warm or cold reset
Interrupt request output to the controller
6 kV ESD protection on cards contacts
Automatic emergency deactivation in the event of supply drop-out, overload, overheating, card take-off or DC-to-DC malfunctioning
Current limitation on pins CLK, RST, I/O and V_CC
Integrated voltage supervisor for power-on reset and drop-out detection.