器件名称: W312-02
功能描述: FTG for VIA K7 Series Chipset with Programmable Output Frequency
文件大小: 143.75KB 共21页
简 介:W312-02
FTG for VIA K7 Series Chipset with Programmable Output Frequency
Features
Single chip FTG solution for VIA K7 Series chipsets Programmable clock output frequency with less than 1 MHz increment Integrated fail-safe Watchdog timer for system recovery Automatically switch to HW selected or SW programmed clock frequency when watchdog timer time-out Capable of generate system RESET after a watchdog timer time-out occurs or a change in output frequency via SMBus interface Support SMBus byte read/write and block read/ write operations to simplify system BIOS development Vendor ID and Revision ID support Programmable drive strength for PCI output clocks Programmable output skew between CPU, AGP and PCI Maximized EMI suppression using Cypress’s Spread Spectrum technology Low jitter and tightly controlled clock skew Two pairs of differential CPU clocks Eleven copies of PCI clocks Three copies of 66-MHz outputs Two copies of 48-MHz outputs Three copies of 14.31818-MHz reference clocks One RESET output for system recovery Power management control support
Key Specifications
CPU Outputs Cycle-to-cycle Jitter: ............................. 250 ps 48-MHz, 3V66, PCI Outputs Cycle-to-cycle Jitter: ....................................................500 ps CPU, 3V66 Output Skew:............................................ 200 ps 48-MHz Output Skew: ................................................. 250 ps PCI Output Skew:................................................……
