SCH322X Family of Super I/O Controllers Feature-Rich and Flexible Family of I/O Controllers Customized for Industrial and Embedded Computing Designers Summary The SCH322X family of feature-rich and flexible I/O controllers is customized to meet the needs of industrial and embedded computing designers. This next-generation product family features smaller packages and long product life cycles, and allows for more cost-effective industrial and embedded applications. The SCH322X is available in both commercial and industrial operating temperature versions. These products are super I/O controllers with an LPC interface and include an 8042 keyboard controller, hardware monitoring capabilities, reset generation, enhanced security features, power control logic, motherboard glue logic and multiple serial ports. SCH322X Super I/O Family ■■ Six devices tailored for ultimate flexibility ■■ Feature rich: different feature sets combine serial ports, parallel port and PS/2 ■■ Flexible: General Purpose Input/Output (GPIO) capability ■■ World class: temperature and voltage monitoring Smaller Packages ■■ Combines multiple I/O functions into a single package ■■ Variety of area-efficient BGA packages to enable compact board design Long Life Cycles ■■ Life cycles optimized for industrial and embedded computing applications ■■ Helps manage innovation risk over the entire life cycle Fan 2 Fan 3 Features ■■ Combines legacy functions • Serial ports • Parallel port • PS/2 ■■ Hardware monitoring • Temperature sensors • Low power options • Fan speed control ■■ GPIOs serve as: • I/O ports • Interrupt steering inputs • Power LED output • Infrared I/O pins Power Supply Serial Port Processor Fan 1 Graphics Controller Automatic Fan Control Thermal & Voltage Monitor Parallel Port MCH/ North Bridge SCH3227 Memory Serial Ports Serial Port Serial Port Serial Port Serial Port PS/2 KBD & MS USB, Audio, LAN, SATA, PATA Parallel Port ICH/ South Bridge Reset Gen, WDT, Therm Trip LPC Bus FWH/Flash Bios System Controller Hub Application Diagram Serial Port GPIO Pins (40) PS/2 Keyboard & Mouse SCH322X Product Family SCH3221 SCH3222 SCH3223 SCH3224 SCH3226 SCH3227 0 to +70ºC −40 to +85ºC 0 to +70ºC −40 to +85ºC 0 to +70ºC −40 to +85ºC 0 to +70ºC −40 to +85ºC 0 to +70ºC −40 to +85ºC 0 to +70ºC −40 to +85ºC 6 × 6 mm, 64-ball WFBGA, pitch - see note 1 7 × 7 mm, 84-ball WFBGA, 0.65 mm pitch 6 × 6 mm, 64-ball WFBGA, pitch - see note 1 8 × 8 mm, 100-ball WFBGA, 0.65 mm pitch 8 × 8 mm, 100-ball WFBGA, 0.65 mm pitch 9 × 9 mm, 144-ball WFBGA, 0.65 mm pitch LPC Bus Interface ü ü ü ü ü ü Watchdog Timer ü ü ü ü ü ü Keyboard Controller – ü – ü ü ü Parallel Port – – – ü – ü Reset Generator – ü ü ü ü ü Serial Ports, Full 4 4 2 2 4 4 Serial Ports, 4-pin 0 2 0 2 2 (by strap option) 2 (by strap option) Programmable Clock Output – ü – ü ü ü IDE/PCI Resets Outputs – – ü – By strap option By strap option (vs 4-pin serial (vs 4-pin serial ports) ports) Power Button/AC Fall Support – – ü – By strap option By strap option (vs 4-pin serial (vs 4-pin serial ports) ports) Operating Temperature Package GPIOs (max) 33 23 19 24 40 40 GPIO with VID Compatible Inputs 0 6 2 0 6 6 Hardware Monitor (HWM) Voltages – – ü ü ü ü Security Key Register – ü ü ü ü ü HWM Fan Control Engine – – ü ü ü ü HWM Temp. Monitoring – – ü ü ü ü HWM PWM/Tach Pairs 0 0 1 3 3 3 Infrared Port IRDA 1.0 ü ü – ü ü ü Note 1: Ball pitch is 0.50 mm with a sparse ball arrangement to allow 0.65 m trace routing rules to be used. Applications ■■ Industrial • Automation, printers, information kiosks, POS terminals, ATMs ■■ Embedded computer • Single-board computer, industrial PC, PC/104 ■■ Computing • Set-top boxes, thin clients www.microchip.com/computing Visit our web site for additional product information and to locate your local sales office. Microchip Technology Inc. • 2355 W. Chandler Blvd. • Chandler, AZ 85224-6199 Information subject to change. The Microchip name and logo and the Microchip logo are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. All other trademarks mentioned herein are property of their respective companies. © 2016, Microchip Technology Incorporated. All Rights Reserved. Printed in the U.S.A. 2/16 DS00002097A