PCK2014A

INTEGRATED CIRCUITS PCK2014A CK98 (100/133 MHz) spread spectrum system clock generator Product specification ICL03 — PC Motherboard ICs; Logic Products Group 2001 Apr 02 Philips Semiconductors Philips Semiconductors Product specification CK98 (100/133 MHz) spread spectrum system clock generator PCK2014A FEATURES ESD classification testing is done to JEDEC Standard JESD22. Latch-up testing is done to JEDEC Standard JESD78 Mixed 2.5 V and 3.3 V operation Six CPU clocks at 2.5 V Six PCI clocks at 3.3 V, one free-running Two 3.3 V fixed clocks @ 66 MHz Three 2.5 V IOAPIC clocks @ 16.67 MHz One 3.3 V 48 MHz USB clock Two 3.3 V reference clocks @ 14.318 MHz Reference 14.31818 MHz Xtal oscillator input 133 MHz or 100 MHz operation Power management control input pins CPU clock jitter ≤ 150 ps cycle-cycle CPU clock skew ≤ 175 ps pin-pin 0.0 ns – 1.5 ns CPU - 3V66 delay 1.5 ns – 3.5 ns 3V66 - PCI delay 1.5 ns – 4.0 ns CPU - IOAPIC delay 1.5 ns – 4.0 ns CPU - PCI delay Available in 56-pin SSOP package ±0.6% Center spread spectrum capability via select pins –0.6% Down spread spectrum capability via select pins DESCRIPTION The PCK2014A is a clock generator (frequency synthesizer) chip for a Pentium III and other similar processors. The PCK2014A has six CPU clock outputs at 2.5 V, two 3V66 clocks running at 66 MHz. there are six PCI clock outputs running at 33 MHz. Additionally, the part has three 2.5 V IOAPIC clock outputs at 16.67 MHz and...