73S8010R

www.DataSheet4U.com 73S8010R Low Cost Smart Card Interface Simplifying System Integration™ DS_8010R_022 APPLICATIONS DESCRIPTION The Teridian 73S8010R is a single smart card interface IC that provides full electrical compliance with ISO-7816-3 and EMV 4.0 (EMV2000) specifications. Interfacing with the host is done through the two-wire 2 I C bus and one interrupt output to inform the system controller of the card presence and faults. The card clock signal can be generated by an on-chip oscillator using an external crystal, or by connection to a clock signal. The Teridian 73S8010R incorporates an ISO-7816-3 activation/deactivation sequencer that controls the card signals. Level-shifters drive the card signals with the selected card voltage (3 V or 5 V), coming from an internal Low Drop-Out (LDO) voltage regulator. This LDO regulator is powered by a dedicated power supply input, VPC. Digital circuitry is separately powered by a digital power supply, VDD. With its embedded LDO regulator, the Teridian 73S8010R is a cost-effective solution for any application where a 5 V (typically -5% +10%) power supply is available. Hardware support for auxiliary I/O lines, C4 / C8 contacts is provided. Emergency card deactivation is initiated upon card extraction or upon any fault generated by the protection circuitry. The fault can be a card over-current, a VDD (digital power supply), a VPC (regulator power supply), a VCC (card power supply) or an over-heating fault. The card over-current ci...