SparkFun Logic Level Converter - Single Supply

The SparkFun Single Supply Logic Level Converter is a compact and versatile tool that combines a logic level and power supply translator. This device is equipped with the Texas Instruments TXB0104 4-bit bi-directional voltage-level translator with automatic direction sensing. It offers the convenience of connecting a 5V logic microcontroller with 3.3V sensors without requiring a second power supply.

This Logic Level Converter stands out due to its unique ability to be powered by a 3.3V source and still generate a 5V output. This means you can operate your 3.3V system and convert directly to a 5V sensor while also powering your sensor or other board.

The converter can provide 5V to the high side of the TXB0104, while the low side voltage is programmable to 3.3V, 2.5V, or 1.8V. It's important to note that the default low side voltage is set at 3.3V. However, this product is not compatible with Qwiic / I²C.

The compact dimensions of this Logic Level Converter, at 28.5mm x 26mm, make it a perfect fit for any project without taking up much space.

For ease of use and to get you started quickly, SparkFun provides a variety of resources including a schematic, Eagle Files, a Hookup Guide, and datasheets for the TXB0104 and TPS61200. You can also find additional resources and updates on GitHub.

Whether you're a hobbyist or a professional, the SparkFun Single Supply Logic Level Converter is a practical addition to your toolkit, offering versatility and convenience in a small package.