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LTC1755EGN
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LTC1755EGN

  • Category:Interface IC
  • Product Name:Smart card interface
  • Manufacturers:LINEAR
  • Production Batch Number:2007
  • Encapsulation:SSOP24
  • Stock Status:There is stock
  • Stock Quantity:2000
  • Minimum order quantity: 1
  • Details:Click here to find PDF information on the LTC1755EGN
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  • Product introduction

LTC1755EGN

Smart card interface

peculiarity

  • Fully compliant with ISO 7816-3 and EMV standards (including auxiliary I/O pins)
  • Buck - The boost charge pump generates 3V or 5V
  • 2.7V to 6.0V Input Voltage Range (LTC1755)
  • Very low operating current: 60μA
  • > 10kV ESD for all smart card pins
  • Dynamic pull-up circuitry enables fast signal rise times
  • Soft-start limits inrush current when turned on
  • 3V - 5V signal level translator
  • Shutdown current:
  • Short circuit and overtemperature protection
  • The alarm output indicates a fault status
  • Multiple Devices Can Be Paralleled for Multicard Applications (LTC1755)
  • Available in 16- and 24-pin SSOP packages

Typical applications

Typical application for the LTC1755

description

In addition, the LTC™1755/LTC1756 general-purpose smart card interfaces are fully compliant with ISO 7816 and EMV specifications. The section provides the smallest and simplest interface circuit between the host microcontroller and the general-purpose smart card.

An internal charge-pump DC/DC converter provides regulatory 3V smart cards or 5V, while on-chip level shifters allow connection to low-voltage controllers. All smart card contacts are rated at 10kV ESD, eliminating the need for external ESD protection devices.

The input voltage range can be from 2.7V to 6.0V and can be connected directly to the battery. Internal soft-start alleviates startup problems that can occur when input power is supplied by another regulator. Multiple devices can be connected in parallel and connected to a single-controller multi-card application.

Battery life is a maximum of 60μA operating current and 1μA shutdown current. Narrow SSOP package minimizes printed circuit board area for compact portable systems.
 

apply

  • Handheld payment terminals
  • Pay phones
  • Keychain card reader
  • Smart card readers

andLTC1755EGNRelated ICs are:


Model Manufacturers lot number encapsulation illustrate
LTC1755EGN LINEAR 2007 SSOP24 Smart card interface

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