GENERAL DESCRIPTION
The W83195AR-25 is a Clock Synthesizer for Intel 815 Solano chipset. W83195AR-25 provides all clocks required for high-speed RISC or CISC microprocessor and also provides 64 different frequencies of CPU, SDRAM, PCI, 3V66, IOAPIC clocks frequency setting. All clocks are externally selectable with smooth transitions.

PRODUCT FEATURES
• 2 CPU clocks (2.5V)
• 3 3V-66 clocks (3.3V)
• 12 SDRAM clocks for 3 DIMMs(3.3V)
• 8 PCI synchronous clocks.
• Optional single or mixed supply:
   (VDDR = VDDP=VDDS = VDD48 = VDD3 = 3.3V, VDDA=VDDC=2.5V)
• Skew form CPU to PCI clock -1 to 4 ns, center 2.6 ns
• Smooth frequency switch with selections from 66.8 to 200MHz
• I2C 2-Wire serial interface and I2C read back
• 0.25% center and 0.5% center type spread spectrum
• Programmable registers to enable/stop each output and select modes
   (mode as Tri-state or Normal )
• 48 MHz for USB
• 24 MHz for super I/O
• Packaged in 56-pin SSOP