LTC1756
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LTC1756

Smart Card Interface

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $3.34
Features
  • Fully ISO 7816-3 and EMV Compliant (Including Auxiliary I/O Pins)
  • Buck-Boost Charge Pump Generates 3V or 5V
  • 2.7V to 6.0V Input Voltage Range (LTC1755)
  • Very Low Operating Current: 60µA
  • >10kV ESD on All Smart Card Pins
  • Dynamic Pull-Ups Deliver Fast Signal Rise Times
  • Soft-Start Limits Inrush Current at Turn On
  • 3V ↔ 5V Signal Level Translators
  • Shutdown Current: <1µA
  • Short-Circuit and Overtemperature Protected
  • Alarm Output Indicates Fault Condition
  • Multiple Devices May Be Paralleled for Multicard Applications (LTC1755)
  • Available in 16- and 24-Pin SSOP Packages
Additional Details
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The LTC1755/LTC1756 universal Smart Card interfaces are fully compliant with ISO 7816-3 and EMV specifications. The parts provide the smallest and simplest interface circuits between a host microcontroller and general purpose Smart Cards.

An internal charge pump DC/DC converter delivers regulated 3V or 5V to the Smart Card, while on-chip level shifters allow connection to a low voltage controller. All Smart Card contacts are rated for 10kV ESD, eliminating the need for external ESD protection devices.

Input voltage may range from 2.7V to 6.0V, allowing direct connection to a battery. Internal soft-start mitigates start-up problems that may result when the input power is provided by another regulator. Multiple devices may be paralleled and connected to a single controller for multicard applications.

Battery life is maximized by 60µA operating current and 1µA shutdown current. The narrow SSOP packages minimize PCB area for compact portable systems.

Applications

  • Handheld Payment Terminals
  • Pay Telephones
  • Key Chain Readers
  • Smart Card Readers
Part Models 2
1ku List Price Starting From $3.34

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Product Lifecycle

PCN

Oct 11, 2022

- 22_0235

Epoxy Change from Henkel 8290 to 8290A for GN Package

Apr 6, 2022

- 22_0066

Laser Top Mark for 16QSOP Assembled in ADPG [PNG]

LTC1756EGN#PBF

PRODUCTION

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PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0235

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Epoxy Change from Henkel 8290 to 8290A for GN Package

Apr 6, 2022

- 22_0066

arrow down

Laser Top Mark for 16QSOP Assembled in ADPG [PNG]

LTC1756EGN#PBF

PRODUCTION

LTC1756EGN#TRPBF

PRODUCTION

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