ICS952623

www.DataSheet4U.com Integrated Circuit Systems, Inc. ICS952623 Advance Information Programmable Timing Control Hub™ for Next Gen P4™ processor Recommended Application: CK409 clock, Intel Yellow Cover part Output Features: 3 - 0.7V current-mode differential CPU pairs 1 - 0.7V current-mode differential SRC pair 7 - PCI (33MHz) 3 - PCICLK_F, (33MHz) free-running 1 - USB, 48MHz 1 - DOT, 48MHz 2 - REF, 14.318MHz 4 - 3V66, 66.66MHz 1 - VCH/3V66, selectable 48MHz or 66MHz Key Specifications: CPU/SRC outputs cycle-cycle jitter < 125ps 3V66 outputs cycle-cycle jitter < 250ps PCI outputs cycle-cycle jitter < 250ps CPU outputs skew: < 100ps +/- 300ppm frequency accuracy on CPU & SRC clocks Features/Benefits: Supports tight ppm accuracy clocks for Serial-ATA Supports spread spectrum modulation, 0 to -0.5% down spread and +/- 0.25% center spread Supports CPU clks up to 400MHz in test mode Uses external 14.318MHz crystal Supports undriven differential CPU, SRC pair in PD# and CPU_STOP# for power management. Pin Configuration Functionality CPU SRC 3V66 PCI REF USB/DOT B6b5 FS_A FS_B MHz MHz MHz MHz MHz MHz 0 0 100 100/200 66.66 33.33 14.318 48.00 0 MID Ref/N0 Ref/N1 Ref/N2 Ref/N3 Ref/N4 Ref/N5 0 1 200 100/200 66.66 33.33 14.318 48.00 0 1 0 133 100/200 66.66 33.33 14.318 48.00 1 1 166 100/200 66.66 33.33 14.318 48.00 1 MID Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z 0 0 200 100/200 66.66 33.33 14.318 48.00 0 1 400 100/200 66.66 33.33 14.318 48.00 1 1 0 266 100/20...