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: VCC = 5 V and ICC up to 60 mA or 3 V +-5pct. and ICC 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 VCC
* Integrated voltage supervisor for power-on reset and drop-out detection.