6.5V, dual smart card coupler
GENERAL DESCRIPTION
The 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.
FEATURES
• Two independent 6 contacts smart card interfaces
• Supply voltage to the cards: VCC= 5 V and ICCup to 60 mA or 3 V±5% and ICCup 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.