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ICS950405 Datasheet(PDF) 3 Page - Integrated Circuit Systems |
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ICS950405 Datasheet(HTML) 3 Page - Integrated Circuit Systems |
3 / 16 page 3 ICS950405 0802F—04/22/05 General Description The ICS950405 is a main system clock solution for desktop designs using the AMD K8 CPU. It provides all necessary clock signals for Clawhammer and Sledgehammer with AMD, VIA or ALI systems. The ICS950405 is part of a whole new line of ICS clock generators and buffers called TCH™ (Timing Control Hub). This part incorporates ICS's newest clock technology which offers more robust features and functionality. Employing the use of a serially programmable I 2C interface, this device can adjust the output clocks by configuring the frequency setting, the output divider ratios, selecting the ideal spread percentage, the output skew, the output strength, and enabling/disabling each individual output clock. M/N control can configure output frequency with resolution up to 0.1MHz increment. Block Diagram PLL2 PLL1 Spread Spectrum PCICLK (7:0, 10) CPUCLKT (1:0) CPUCLKC (1:0) X1 X2 XTAL OSC CPU DIVDER PCI DIVDER HTT DIVDER SDATA SCLK PD# FS (3:0) SEL24_48# MODE (A,B) Control Logic REF (2:0) 48MHz 24_48MHz / 2 PCICLK(11,9,8)/HTTCLK (3:1) HTTCLK0 Config. Reg. |
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