DESCRIPTION
The LTC®1756 universal Smart Card interface is fully compliant with ISO 7816-3 and EMV specifications. It provides the smallest and simplest interface circuit between a host microcontroller and general purpose Smart Cards.

FEATURES
■ Fully ISO 7816-3 and EMV Compliant
■ Buck-Boost Charge Pump Generates 3V or 5V
■ 2.7V to 5.5V Input Voltage Range
■ 3V↔ 5V Signal Level Translator
■ >10kV ESD on All Smart Card Pins
■ Dynamic Pull-Ups Deliver Fast Signal Rise Times
■ Soft Start Limits Inrush Current at Turn On
■ Very Low Operating Current: 75µA
■ Shutdown Current: <2.5µA
■ Short-Circuit and Overtemperature Protected
■ Available in 16-Pin SSOP Package

APPLICATIONS
■ Handheld Payment Terminals
■ Pay Telephones
■ ATMs
■ Key Chain Readers
■ Smart Card Readers