Level shifter analog circuit designed to translate the voltages between a SIM Card and an external microcontroller or MPU
Description
General Description 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 well as GSM 11.11 and related (11.12 and ...
Etek Microelectronics
ET4555 PDF File
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