描述 Description

The SCH5407 is a 3.3V (Super I/O Block is 5V tolerant)PC99/PC2001 compliant Super I/O controller with an LPC?interface. Itincludes Hardware Monitoring capabilities, enhanced?Security features,Power Control logic and Motherboard Glue logic. There are five analog inputs for monitoring?external voltages,as well as internal monitoring of the SIO’s VCC (emulated?power well), VTR(signal power well), and VBAT power supplies. The?Motherboard Glue logicincludes various power management and system logic?including generation ofnRSMRST, SMBus isolation buffers, and buffered PCI (Peripheral?ComponentInterconnect) reset outputs.?Complete?legacy Super I/O functionality including a floppydisk controller with SMSC's?true CMOS 765B core and enhanced?digitaldata separator are incorporated. The true CMOS 765B core provides 100%compatibility?with IBM PC/XTTM?and PC/ATTM?architecturesand is software and register compatible?with SMSC's proprietary 82077AAcore.?Family partsSCH5407-NW

特性 Features

8042 Keyboard Controller
128 QFP Packaging
30 GPIO Pins
State Machine Fan Control Engine
SMBus Interface
IEEE 1284, EPP, ECP Compatible Parallel Port
One IrDA 1.0 Infrared Port
One 16C550A UART-compatible serial port
3 PWM Outputs
3 fan tachometer inputs
Hardware monitoring capability: temperature, voltage, and fan speed monitoring, can alert the system to out-of-limit conditions and automatically control the speeds of multiple fans.
Monitor two external temperatures via thermal diode inputs and an internal sensor (measures ambient temperature).