NCN4555 Description
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...
NCN4555 Key Features
- 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
- ESD Protection on SIM Pins in Excess of 7 kV (Human Body Model)
- Supports up to More than 5 MHz Clock
- Low-Profile 3x3 QFN-16 Package
- These are Pb-Free Devices
NCN4555 Applications
- SIM Card Interface Circuit for 2G, 2.5G and 3G Mobile Phones