Often, it becomes necessary to interface an existing or new 5V AVR / PIC / MCU project to new devices that use 3.3V logic, like memory cards ... and can be used when you need only the an I2C level ...

This recently added Logic Level Converter is no exception. It’s uses two BSS138 MOSFETs to shift 5V logic levels to 3.3V. The board handles two separate serial pairs. Just hook up the RX and TX ...

Although optimized for the conversion of sine waves, the LTC6957 can be used to convert any signal type to a logic-level signal. The device is suitable for systems that distribute system clock ...

Using the analog converter input function of a compact ... Simply use ternary (three-state) logic instead of binary. The example in the figure shows an implementation with two ternary inputs ...