The C8051F304-GS is a Flash-based, 8-bit microcontroller (MCU) from Silicon Labs. It is a low-power, low-cost member of the 8051 family of MCUs and is designed for applications that require basic peripherals such as up to ten programmable I/O lines, on-chip oscillators, and intense arithmetic operations. In addition, the C8051F304-GS also has several advanced features such as advanced low-power modes, serial I/O, Interrupts, Watchdog timer, and high-speed analog peripherals. It is packaged in Lead-Free Ceramic DIP (8x14) and is suitable for operation from -40°C to +85°C.