The IT8720F is a Super I/O controller manufactured by ITE Tech. (Now Broadcom Limited). This chip integrates various input/output functions commonly found in PC systems. It manages features such as temperature monitoring, fan speed control, voltage monitoring, and serial/parallel ports. The IT8720F is a crucial component for system health monitoring and control.

Applications

• Desktop motherboards
• Embedded systems
• Industrial PCs
• Server motherboards
• Notebook computers

Features

• Hardware monitoring (temperature, voltage, fan speed)
• Fan speed control (PWM or linear)
• Serial ports (UARTs)
• Parallel port (LPT)
• Infrared port (IrDA)
• Keyboard and mouse controller
• GPIO (General Purpose Input/Output) pins

Benefits

• System health monitoring
• Fan noise reduction through speed control
• Legacy I/O support
• Flexible system configuration
• Improved system stability

Additional Details

The IT8720F monitors critical system parameters, such as CPU and motherboard temperatures, various voltage levels, and fan speeds. This data allows the system to adjust fan speeds to maintain optimal cooling while minimizing noise. The fan speed control supports both PWM (Pulse Width Modulation) and linear control methods, offering flexibility in fan selection and control. The integrated serial ports enable communication with external devices, while the parallel port provides compatibility with legacy printers and other peripherals. The infrared port allows for wireless communication using IrDA standards. The keyboard and mouse controller manages input from these devices. The GPIO pins provide versatile input/output capabilities for custom system functions. The IT8720F is typically connected to the system's LPC (Low Pin Count) bus, allowing it to communicate with the chipset. The IT8720F is configured through software, allowing system integrators to customize its behavior. Proper configuration is crucial to ensure accurate monitoring and control of system parameters.