I2C & I3C ICs are not a specific brand but a category of integrated circuits (ICs) that utilize the I2C (Inter-Integrated Circuit) and I3C (Improved Inter-Integrated Circuit) communication protocols. These protocols are widely used in the electronics industry for connecting low-speed peripherals to microcontrollers and processors. Companies like NXP Semiconductors (Netherlands), Texas Instruments (USA), and STMicroelectronics (Switzerland/France) are prominent manufacturers of I2C and I3C ICs. These ICs serve industries such as consumer electronics, automotive, industrial automation, and IoT, enabling efficient communication between sensors, displays, and other peripheral devices. Key products include I2C/I3C bus controllers, interface adapters, and compatible sensors.