General Description

The ICS9159C-02 generates all clocks required for high speed RISC or CISC microprocessor systems such as 486, Pentium, PowerPC,? etc. Four different reference frequency multiplying factors are externally selectable with smooth frequency transitions. These multiplying factors can be customized for specific applications. A test mode is provided to drive all clocks directly.

特性 Features

? Generates up to four processor and six bus clocks, plus disk, keyboard and reference clocks

? Synchronous clocks skew matched to 250ps window on PCLKs and 500ps window on BCLKs

? Test clock mode eases system design

? Custom configurations available:

Output frequency ranges to 100 MHz on options

Selectable multiplying and processor/bus ratios

Stop clock control stops clock glitch-free; available as mask option

? 3.0V - 5.5V supply range

? 28-pin SOIC package

Applications

? Ideal for high-speed RISC or CISC systems such as 486, Pentium, PowerPC, etc.