PCK2020

NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

The PCK2020 is a clock synthesizer/driver for a Pentium III and other similar processors.

The PCK2020 has four differential pair CPU current source outputs, two Mref clock outputs running at 1/2 the CPU clock frequency depending on the state of SEL133/100 pin and four 3V66 clocks running at 66 MHz. There are ten PCI clock outputs running at 3 MHz and two 48 MHz clocks. Finally, there are two 3.3 V eference clocks at 14.318 MHz. All clock outputs of PCK2020 meet Intel's drive trength, rise/fall times, jitter, accuracy, and skew requirements.

The part possesses a dedicated power-down input pin for power anagement control. This input of PCK2020 is synchronized on-chip and nsures glitch-free output transitions.