What is the purpose of open-drain interrupts? Open-drain interrupts are used to communicate some type of indicator or flag back to the MCU. It signals the brains of system that something has happened to one or more peripheral devices in a design.

Input high voltage, input low voltage, output high voltage, output low voltage. Why do these terms matter, and how to design electrical systems with this electrical characteristics in mind.

This post contains links to various topics for I2C and is updated when new and valuable I2C resources are posted to the internet.

Texas Instruments TCAL6416 I2C IO Expander is a widely capable device with several features useful for various electrical systems involving IO shortages.

Open-drain circuits are common output stages used in various applications of electrical engineering.

What is I2C buffering? How is the TCA9517A used?