
Catalog
SIM card interface level translator
Description
AI
The NXT4559 device is built for interfacing a SIM card with a single low-voltage host side interface. The NXT4559 has three level translators to convert the data, RST and CLK signals between a SIM card and a host microcontroller. A high speed level translation capable of supporting class-B, class-C SIM cards. VCC_SIMpower-down initiates a shutdown sequence on SIM card pins in accordance with ISO-7816-3.