SIM Card Controller

The ET4555 is a level shifter analog circuit designed to translate the voltages between a SIM Card and an external microcontroller or MPU. A built−in LDO−type DC−DC converter makes the ET4555 useable to drive 1.8 V & 3.0V SIM card. The device fulfills the ISO7816−3 smart card interface standard as w • Supports 1.8V or 3.0V Operating SIM Card\r\n• The LDO is able to Supply More than 50mA under 1.8V & 3.0V\r\n• Built−in Pullup Resistor for I/O Pin in Both Directions\r\n• All Pins are Fully ESD Protected According to ISO−7816 Specifications – ESD Protection on SIM Pins in Excess of 7 kV (Human Bod;

ETEK

力芯微

1.8V / 3.0V SIM Card Power Supply and Level Shifter

文件：992.63 Kbytes 页数：13 Pages

FAIRCHILD

仙童半导体

1.8V / 3.0V SIM Card Power Supply and Level Shifter

文件：992.63 Kbytes 页数：13 Pages

FAIRCHILD

仙童半导体

SIM Card Power Supply and Level Shifter

文件：818.75 Kbytes 页数：15 Pages

ONSEMI

安森美半导体