LTC4556 Datasheet - Linear Technology

LTC4556 Smart Card Interface

The LTC®4556 provides all necessary power control, level translation and supervisory functions for a smart card or S.A.M. card interface. The part contains a low noise charge pump plus LDO for generating VCC power, as well as all necessary level shifting circuitry. The card voltage can be set to eit.

LTC4556 Features

* n Electrical Specifications Are ISO7816-3 and EMV Compatible n Control/Status Serial Port May be Daisy-Chained for Multicard Applications n Automatic Shutdown on Electrical Faults n Buck Boost Charge Pump Generates 5V, 3V or 1.8V Outputs (Smart Card Classes A, B and C) n Automatic Level Translation

LTC4556_LinearTechnology.pdf