The IC Card Interface IP provides power supply for either 1.8V, 3V, or 5V Smart/SAM cards, and realizes level-shift between smart card controller and smart card, using SMIC 0.18um Mixed-Signal CMOS process. This IP mainly consists of two parts, the Power MUX and IC Card I/O. The Power MUX provides one of 1.8V, 3V, or 5V voltage to smart card under the control of smart card. The IC Card I/O can shift the Smart Card interface voltages of both controller side and card side no matter the power of which side is higher.

Architecture: One stage switch for MUX, Over Current Protection for Power and IO Pads  
Process: SMIC 0.18um Mixed-Signal CMOS Process  
Wide Input/Output Voltage Range for Power MUX  1.8V/30mA, 3V/55mA, 5V/60mA  
Power Down Current: < 1uA  
All Pins are ESD Protection: 2 kV, Human Body Mode  
All Card Outputs Current Limited and Short Circuit Protected  
Clock Frequency: > 10MHz  
Provides Logic I/O Enable Function  
Operating Temperature: -40c~+25c~+125c