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键盘控制器 IT8502
The IT8502E/F/G is a highly integrated, embedded controller with an embedded micro controller and integrated advanced functions. It is targeted for a wide range of portable application that uses the Low Pin Count (LPC) interface.

The IT8502E/F/G incorporates an 8032 micro controller which is an 8051-compatible, based on RISC architecture. The IT8502E/F/G provides ACPI embedded controller function, keyboard controller (KBC) and matrix scan, PWM, DAC, ADC and SmartAuto Fan control for hardware monitor, PS/2 interface for external keyboard/mouse devices, system wake up functions for system power management, Watchdog timers, timers and general purpose I/O (GPIO), Consumer IR and SPI flash . It also supports the external flash shared by the host and EC side.

Product Spec of IT8502E

8032TT Embedded Controller                      SM Bus Controller
LPC Bus Interface                                        System Wake Up Control
External SPI Flash Interface                         EC Wake Up Control
Interrupt Controller                                     DAC
Timer / Watch Dog Timer                               PWM with SmartAuto Fan Control
ACPI Power Management Channel                KB Matrix Scan
GPIO                                                             Power Consumption
KBC Interface                                              128-pin LQFP/QFP/TFBGA
ADC