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

Manufacturer: Etek Microelectronics

ET4555 level shifter analog circuit designed to translate the voltages between a sim card and an external microcontroller or mpu by Etek Microelectronics - Datasheet Preview

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
Download	ET4555 Download (PDF)

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).

Overview

General .

Key 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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