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PLL52C63-01
Pen tium/SDRAM Clock Gen er ator with In te grated Buff ers FEATURES
n Generates all clock frequencies for Pentium (II), AMD and Cyrix system requiring multiple CPU clocks. n Supports up to16 Synchronous CPU clocks (4 CPU and 12 SDRAM) and 7 Synchronous PCI BUS clocks. n Two 14.318Mhz reference clocks and one 2.5V IOAPIC n One 24Mhz floppy clock and one 48Mhz USB clock. n Power management control pins to stop CPU, SDRAM or PCI BUS clocks. n Supports 2-wire I2C serial bus interface. n 50% duty cycle with low jitter n Mixed voltage support from 3.0 to 5V or (VDDq2=2.5V) n Available in 300mil 48 pin SSOP.
PIN INFORMATION
FREQUENCY SELECTION (MHz)
F2 0 0 0 0 1 1 1 1 F1 0 0 1 1 0 0 1 1 F0 PCLK/SDRAM 0 1 0 1 0 1 0 1 50 100 83.3 68.5 55 75 60 66.6 BCLK 25 50 41.6 34.2 27.5 37.