IT8728F Datasheet – Environment Control ( EC-LPC I/O ) – ITE

Part Number : IT8728F

Function : Environment Control – Low Pin Count Input / Output ( EC – LPC I/O )

Manufactures : ITE Tech Inc

Image :

IT8728F image

The IT8728F is a highly integrated Super I/O using the LowPin Count Interface. It provides the most commonly used legacy Super I/O functionality plus the latest Environment Control initiatives, including H/W Monitor and Fan Speed Controller. The device’s LPC interface complies with Intel “LPC Interface Specification Rev. 1.1”. The IT8728F is ACPI & LANDesk compliant.

The IT8728F features an enhanced hardware monitor providing three thermal inputs from remote thermal resistors, or thermal diode or diode-connected transistor (2N3904/2N3906). The device employs ITE’s innovative intelligent automatic Fan ON/OFF & speed control functions (SmartGuardian)to protect the system while reducing the system noise and power consumption.The Fan Speed Controller can control up to five fan speeds through five separate 256 steps of Pulse Width Modulation (PWM) output pins and monitor up to five FANs’ Tachometer inputs.

IT8728F Datasheet

IT8728F Datasheet


M51784P Datasheet – Motor Control – Mitsubishi

Part Number : M51784P

Function : 3-Phase Brushless Motor Control

Manufacturers : Mitsubishi

M51784P Datasheet refer to M51785P Datasheet

Image :

M51784P Datasheet Image


The M51784P, M51784SP, M51785P, M51785SP is a semiconductor integrated circuit designed for a single-chip controller for FDD spindle motor, consisting of power amplifier, Hall ajplifier, FG amplifier, oscilliator and speed discriminator and various protection circuits. The device shows superiority in speed switching function of 1 : 1.2 which enables miniaturization of motor sets and cost reduction.

Block Diagram :

M51784P M51785P Block Diagram

Pinout :

M51784P Pinout

M51784P Datasheet PDF Download