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LTC4556 - Smart Card Interface

Datasheet Summary

Description

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.

Features

  • n Electrical Specifications Are ISO7816-3 and EMV Compatible n Control/Status Serial Port May be Daisy-Chained for Multicard.

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Datasheet preview – LTC4556

Datasheet Details

Part number LTC4556
Manufacturer Linear Technology
File Size 263.83 KB
Description Smart Card Interface
Datasheet download datasheet LTC4556 Datasheet
Additional preview pages of the LTC4556 datasheet.

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Full PDF Text Transcription

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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 n Dynamic Pull-Ups Deliver Fast Signal Rise Times n Supervisory Functions Prevent Smart Card Faults n Low Operating Current: 250µA Typical n VIN: 2.7V to 5.5V n Ultralow Shutdown Current n >10kV ESD on Smart Card Pins n Small 24-Lead 4mm × 4mm QFN Package Applications n Handheld Payment Terminals n Pay Telephones n ATM Machines n POS Terminals n Computer Keyboards n Multiple S.A.M.
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