Nexperia NXT4556UPZ, Bus Transceiver SOT8027

The Nexperia device is built for interfacing a SIM card with a single low-voltage host side interface. The NXT4556 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.

Integrated pull-up resistors
Integrated EMI filters suppresses higher harmonics of digital I/O's
Supports clock speed beyond 5 MHz clock