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