GENERAL DESCRIPTION
The W83194R-KX is a clock generator which provides all clocks required for AMD K7 system. W83194R-KX provides one differential pair CPU clock open drain outputs up to 143MHz which are externally selectable with smooth transitions. W83194R-KX also provides 6 PCI clocks and 13 SDRAM clocks controlled by the none-delay buffer_in pin.

PRODUCT FEATURES
• Supports AMD K7 CPU with I2C.
• One pair of differential CPU clocks
• One chipset clock
• 13 SDRAM clocks for 3 DIMMs
• 6 PCI synchronous clocks
• Optional single or mixed supply:
    (Vddq3=Vddq2 =3.3V) or (Vddq3 = 3.3V, Vddq2 = 2.5V)
• < 250ps skew among CPU clocks
• < 250ps skew among PCI clocks
• < 5ns propagation delay SDRAM from buffer input
• Skew from CPU(earlier) to PCI clock 1.5 to 4ns, center 2.6ns.
• Smooth frequency switch with selections from 66.8 MHz to 143 MHz CPU
• I2C 2-Wire serial interface and I2C read back
• ± 0.25% or ± 0.5% spread spectrum function to reduce EMI
• Programmable registers to enable/stop each output and select modes
    (mode as Tri-state or Normal )
• One 48 MHz for USB & one 24 MHz for super I/O
• 48-pin SSOP package