NCN4555 Datasheet PDF – Level Shifter

Part Number: NCN4555

Function: 1.8V / 3V SIM Card Power Supply and Level Shifter

Package: QFN 16 Pin Type

Manufacturer: ON Semiconductor


NCN4555 datasheet



The NCN4555 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 NCN4555 useable to drive 1.8 V and 3.0 V SIM card.



1. Supports 1.8 V or 3.0 V Operating SIM Card

2. The LDO is able to Supply More than 50 mA under 1.8 V and 3.0 V

3. Built−in Pullup Resistor for I/O Pin in Both Directions

4. Supports up to More than 5 MHz Clock


1. Identification Module

2. Smart Card Readers

3. Wireless PC Cards

NCN4555 Datasheet PDF Download

NCN4555 pdf

Other data sheets are available within the file: NCN4555MNG, NCN4555MNR2G