NCN4555 PDF Datasheet


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Description

This is SIM Card Power Supply and Level Shifter. NCN4555 1.8V , 3V SIM Card Power Supply and Level Shifter 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. 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 STOP 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 http:, , onsemi.com 1 QFN 16 MN SUFFIX CASE 488AK Supports 1.8 V or 3.0 V Operating SIM Card The LDO is able to Supply More than 50 mA under 1.8 V and 3.0 V 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 .