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Super I/O Controller.

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SCH3224-SY General Description

The SCH3224 is a 3.3V Super I/O Controller with an LPCinterface. It includes Keyboard Controller, Hardware Monitoring capabilities,Power Control logic, and Motherboard Glue logic. The device provides aparallel port, 4 full serial ports and the option for two additional 4-Pinserial ports. The serial ports are fully functional NS16550 compatibleUARTs that support data rates up to 1.5 Mbps.

Hardware Monitoring capability has programmable,automatic fan control. Three fan tachometer inputs and three pulse widthmodulator (PWM) fan control outputs are available. In addition, HWM includestemperature, voltage and fan speed monitoring. It can alert the system toout of limit conditions and automatically control the speed of multiple fans inresponse.

System related functionality, which offersflexibility to the system designer, included 40 General Purpose I/O (GPIO)control functions and control of two LED's.

The SCH3224 is available in commercial (0°C to+70°C and industrial (-40°C to +85°C) temperature ranges.

Family parts

Microchip Technology, Inc Inventory

Key Features

  • 8042 Keyboard Controller
  • 144-ball WFBGA Package
  • Legacy I/O
  • 40 GPIO Pins
  • 32 byte Security Key Register for device authentication
  • Fan Control Engine
  • Glue logic
  • 3 PWM Outputs
  • 3 fan tachometer inputs
  • IEEE 1284, EPP and ECP Compatible Parallel Port
  • One IrDA 1.0 Infrared Port
  • NS16550 compatible UART serial ports
  • Four 8-pin serial ports
  • Two 4-pin serial ports by strap option
  • ACPI 2.0 compatible
  • Industrial (-40°C to +85°C)
  • Commercial(0°C to +70°C)
Microchip Technology, Inc Original Stock


Category Integrated Circuits (ICs)EmbeddedApplication Specific Microcontrollers Mfr Microchip Technology
Series - Package Tray
Product Status Active Digi-Key Programmable Not Verified
Applications I/O Controller Core Processor 8042 Keyboard Controller
Program Memory Type ROM (2kB) Controller Series -
RAM Size 256 x 8 Interface IrDA, LPC, Parallel, Serial, UART
Number of I/O 24 Voltage - Supply -
Operating Temperature 0°C ~ 70°C (TA) Mounting Type Surface Mount
Package / Case 100-WFBGA Supplier Device Package 100-WFBGA (8x8)
Base Product Number SCH3224

Service Policies and Others

After-Sales & Settlement Related

payment Payment

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If you have specific preferences or requirements for payment channels, please contact our sales team. 

customers are required to pay all possible fees, including sales tax,customs fees, etc.

shipping Shipping And Packing
Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

warranty Warranty & Returns

Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.


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Availability: 4489 PCS

Qty. Unit Price(USD) Ext. Price
1+ $4.881 $4.88
348+ $1.889 $657.37
696+ $1.824 $1,269.50
1044+ $1.790 $1,868.76

The prices below are for reference only.