NXT4557GUX
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Nexperia NXT4557 SIM Card Interface Level Translator is built for interfacing a SIM card with a single low-voltage host-side interface. The NXT4557 consists of three-level translators to convert the data, RST, and CLK signals between a SIM card and a host microcontroller. The translator features a high-speed level translation capable of supporting class-B, class-C SIM cards, and HIGH EN pin that enables the normal operation of the translator. The device is compliant with all ETSI, IMT-2000, and ISO-7816 SIM/Smart card interface requirements. Typical applications include a wide range of SIM card attached devices, including mobile and personal phones, wireless modems, and SIM card terminals.