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ET4555 - Level shifter analog circuit designed to translate the voltages between a SIM Card and an external microcontroller or MPU

Datasheet Summary

Description

The ET4555 is a level shifter analog circuit designed to translate the voltages between a SIM Card and an external microcontroller or MPU.

in LDO type DC

DC converter makes the ET4555 useable to drive 1.8 V & 3.0V SIM card.

3 sm

Features

  • Supports 1.8V or 3.0V Operating SIM Card The LDO is able to Supply More than 50mA under 1.8V & 3.0V Built.
  • in Pullup Resistor for I/O Pin in Both Directions All Pins are Fully ESD Protected According to ISO.
  • 7816 Specifications .
  •  ESD Protection on SIM Pins in Excess of 7 kV (Human Body Model) Supports up to More than 5 MHz Clock Package：QFN.
  • 16（ET4555Y）.

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Datasheet preview – ET4555

Datasheet Details

Part number ET4555
Manufacturer Etek Microelectronics
File Size 162.70 KB
Description Level shifter analog circuit designed to translate the voltages between a SIM Card and an external microcontroller or MPU
Datasheet download datasheet ET4555 Datasheet
Additional preview pages of the ET4555 datasheet.

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Full PDF Text Transcription

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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 11.18) and 3G mobile requirements (IMT−2000/3G TS 31.101). With the pin a low current shutdown mode can be activated making the battery life longer. The Card power supply voltage (SIM_VCC) is selected using a single pin (MOD_VCC). Features Supports 1.8V or 3.0V Operating SIM Card The LDO is able to Supply More than 50mA under 1.8V & 3.
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