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8399
8399
N/B Maintenance
N/B Maintenance
28
Microsoft Windows XPTM, Windows NTTM, Windows 2000TM, Windows 98TM and plug and play BIOS
compliant
Built-in NAND-tree pin scan test capability
0.22um, 2.5V, low power CMOS process
Single chip 27 x 27 mm, 1.0 mm ball pitch, 487 pin BGA
1.3.4 System Frequency Synthesizer and DDR-SDRAM Buffer: ICS950403
The ICS950403 is a system clock synthesizer chip for AMD K8 based notebook systems with AMD, VIA or Ali
chipset. This provides all clocks required for such a system. The ICS950403 employs a proprietary closed loop
design, which tightly controls the percentage of spreading over process and temperature variations. Serial
programming I 2 C interface allows changing functions, stop clock programming and frequency selection.
Output Features
2 - Differential pair push-pull CPU clocks @ 3.3V
8 - PCICLK (Including 1 free running) @ 3.3 V
3 - Selectable PCICLK/HTTCLK @ 3.3V
1 - HTTCLK @ 3.3V
1 - 48MHz @ 3.3V fixed
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