Dual 3.3V PLL Clock Generator

The MPC980 is a 3.3V dual PLL clock generator targeted for high end Pentium and PowerPC 603/604 personal computers. The MPC980 synthesizes processor as well as PCI clocks from a 14.31818MHz external crystal. In addition the device provides two buffered outputs of the 14.31818MHz crystal as well as a 40MHz SCSI clock, a 24MHz floppy clock and a 12MHz keyboard clock. One of the buffered 14.31818MHz outputs can be configured to provide a 16MHz output rather than the second copy of the 14.31818MHz output.

• Provides Processor and System Clocks for Pentium™ Designs

• Provides Processor and System Clocks for PowerPC™ 603/604 Designs

• Two Fully Integrated Phase–Locked Loops

• Cycle–to–Cycle Jitter of ±150ps

• Operates from 3.3V Supply

• 52–Lead LQFP Packaging