VT82C686BG

Product Summary

The VT82C686BG is a PSIPC (PCI Super-I/O Integrated Peripheral Controller). It is a high integration, high performance, power-efficient, and high compatibility device that supports Intel and non-Intel based processor to PCI bus bridge functionality to make a complete Microsoft PC99-compliant PCI/ISA system. In addition to complete ISA extension bus functionality, the VT82C686BG includes standard intelligent peripheral controllers:

Parametrics

VT82C686BG absolute maximum ratings: (1)Storage temperature: -55 to 125℃; (2)Operating temperature - Case: 0 to 85℃; (3)Operating temperature - Ambient: 0 to 70℃; (4)Reference Voltage: 0 to 5.5 Volts; (5)Core Voltage: 0 to 3.6 Volts; (6)Suspend Voltage: -0.5 to VCC + 0.3 Volts; (7)USB Voltage: -0.5 to VCC + 0.3 Volts; (8)Hardware Monitor Voltage: -0.5 to VCC + 0.3 Volts; (9)Battery Voltage: -0.5 to VCC + 0.3 Volts; (10)Input voltage (3.3V only inputs): -0.5 to VCC + 0.3 Volts; (11)Input voltage (5V tolerant inputs): -0.5 to VREF + 0.5 Volts.

Features

VT82C686BG features: (1)Integrated ISA Bus Controller with integrated DMA, timer, and interrupt controller; (2)Integrated Keyboard Controller with PS2 mouse support; (3)Integrated DS12885-style Real Time Clock with extended 256 byte CMOS RAM and Day/Month Alarm for ACPI; (4)Integrated USB Controller with root hub and four function ports; (5)Integrated UltraDMA-33/66/100 master mode EIDE controller with enhanced PCI bus commands; (6)PCI-2.2 compliant with delay transaction and remote power management; (7)Eight double-word line buffer between PCI and ISA bus; (8)One level of PCI to ISA post-write buffer; (9)Supports type F DMA transfers; (10)Distributed DMA support for ISA legacy DMA across the PCI bus; (11)Serial interrupt for docking and non-docking applications; (12)Fast reset and Gate A20 operation; (13)Edge trigger or level sensitive interrupt; (14)Flash EPROM, 4Mb EPROM and combined BIOS support; (15)Supports positive and subtractive decoding.

Diagrams