The 8761 is a low voltage, low skew PCI / PCI-X Clock Generator. The 8761 has a selectable REFCLK or crystal input. The REFCLK input accepts LVCMOS or LVTTL input levels. The 8761 has a fully integrated PLL along with frequency configurable clock and feedback outputs for multiplying and regenerating clocks with "zero delay". Using a 20MHz or 25MHz crystal or a 33.333MHz or 66.666MHz reference frequency, the 8761 will generate output frequencies of 33.333MHz, 66.666MHz, 100MHz and 133.333MHz simultaneously. The low impedance LVCMOS/LVTTL outputs of the 8761 are designed to drive 50Ω series or parallel terminated transmission lines.