LTC1755
FEATURES s Fully ISO 7816-3 and EMV pliant (Including Auxiliary I/O Pins) s Buck-Boost Charge Pump Generates 3V or 5V s 2.7V to 6.0V Input Voltage Range (LTC1755) s Very Low Operating Current: 60µA s > 10k V ESD on All Smart Card Pins s Dynamic Pull-Ups Deliver Fast Signal Rise Times s Soft-Start Limits Inrush Current at Turn On s 3V ↔ 5V Signal Level Translators s Shutdown Current: < 1µA s Short-Circuit and Overtemperature Protected s Alarm Output Indicates Fault Condition s Multiple Devices May Be Paralleled for
Multicard Applications (LTC1755) s Available in 16- and 24-Pin SSOP Packages
U APPLICATIO S s Handheld Payment Terminals s Pay Telephones s ATMs s Key Chain Readers s Smart Card Readers
LTC1755/LTC1756
Smart Card Interface
DESCRIPTIO
The LTC®1755/LTC1756 universal Smart Card interfaces are fully pliant 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...
