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Nexperia NXT4557 SIM Card Interface Level Translator with ENABLE pin

https://www.electronics-lab.com/nexperia-nxt4557-sim-card-interface-level-translator-with-enable-pin/

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 […]

Bi-Directional Voltage Level Translator

https://www.electronics-lab.com/bi-directional-voltage-level-translator/

Lukas Fassler from Soldernerd shares his experience designing a bi-directional voltage level translator and manufacturing the board with DirtyPCBs. While most of my microcontroller designs run on 3.3 volts there is still the occasional 5 volt design. Or I do something with an Arduino. So the need may arise to interface between logic working at different […]