The SCH5636 is a 3.3V PC 2001 compliant Super I/O controller with an LPC interface. All legacy drivers used for Super I/O components are supported, making this interface transparent to the supporting software. The LPC bus also supports power management, such as wake-up and sleep modes.

This device provides temperature monitoring with auto fan control and can monitor up to three external diodes, one internal ambient temperature sensor or retrieving temperatures from external processors that implement the PECI (Platform Environmental Control Interface).

Glue Logic includes various power management logic including, generation of RSMRST# and Power OK signal generation. A floppy disk controller with SMSC's true CMOS 765B core and enhanced digital data separator provides 100% compatibility with IBM PC/XT and PC/AT architectures, and is software- and register- compatible with SMSC's proprietary 82077AA core. 

Family parts
SCH5636-NS

• 8042 Keyboard Controller
• 128 QFP Packaging
• Customer-programmable RAM
• 60 GPIO
• μController Fan Control Engine
• PECI 2.0, x2 CPU, x4 domain, C3/C4
• PCH Temp Monitoring
• AMD SB-TSI
• 2 SMBus Interfaces (master or slave)
• IEEE 1284 EPP, ECP, and  IBM PC/AT Compatible Parallel Port
• Two 16C550A UART-compatible serial ports
• 100% compatible with IBM PC/XT and PC/AT architecture
• 4 PWM Outputs
• 4 fan tachometer inputs
• Programmable automatic fan control support
• Bi-directional PROCHOT# pin support