I2c Overview May 2026

Data is sent in 8-bit bytes, most significant bit first, with each byte followed by an ACK/NACK bit.

Multiple masters can control the same slave, and multiple slaves can reside on the same bus. I2C Overview

SDA and SCL are connected to a voltage source via pull-up resistors, allowing devices to pull the lines low without creating short circuits. Data is sent in 8-bit bytes, most significant

The master sends the 7-bit unique address of the target slave, followed by a R/W bit (0 for write, 1 for read). Data is sent in 8-bit bytes

Each slave device has a unique 7-bit (or 10-bit) address, eliminating the need for complex Chip Select (CS) lines used in SPI.