An 8-bit microcontroller (MCU) is a small, low power device that can be used to control various electronic devices, from embedded systems and toys to office equipment and sophisticated robots. An 8-bit MCU contains a CPU, memory, and peripheral interfaces. It is a complete device-on-chip (DoC) with all functions and peripherals available in a single package. Most 8-bit MCUs have the same general principles of operation as a computer, but they can do less complex tasks and run with less power. Generally MCUs sell for a fraction of the cost of a comparable standard controller, providing an economical option for controlling devices. 8-bit microcontrollers are typically used in applications like home automation, motor control, streaming audio, and data acquisition systems.