ICS952906A

Integrated Circuit Systems, Inc. ICS952906A Programmable Timing Control Hub™ for Next Gen P4™ processor Recommended Application: VIA VN800/CN700/P4M800 style chipset for P4 processor Output Features: 3 - 0.7V current-mode differential CPU pairs 10 - PCI, 3 free running, 33MHz 2 - REF, 14.318MHz 3 - 3V66, 66.66MHz www.DataSheet4U.com 1 - 48MHz 1 - 24/48MHz 2 - 25MHz @ 2.5V Key Specifications: CPU/SRC outputs cycle-cycle jitter < 125ps 3V66 outputs cycle-cycle jitter < 250ps PCI outputs cycle-cycle jitter < 250ps CPU - AGP skew < +/- 350ps AGP-PCI skew between 1~3.5ns Functionality Bit4 Bit3 Bit2 Bit1 Bit0 CPU FS4 FS3 FS2 FS1 FS0 MHz 100.00 0 0 0 0 0 200.00 0 0 0 0 1 133.33 0 0 0 1 0 166.67 0 0 0 1 1 0 0 1 0 0 200.00 0 0 1 0 1 400.00 0 0 1 1 0 266.67 0 0 1 1 1 333.33 100.99 0 1 0 0 0 201.98 0 1 0 0 1 134.65 0 1 0 1 0 168.31 0 1 0 1 1 1 115.00 0 1 0 0 230.00 0 1 1 0 1 153.33 0 1 1 1 0 191.67 0 1 1 1 1 1 100.00 0 0 0 0 200.00 1 0 0 0 1 133.33 1 0 0 1 0 166.67 1 0 0 1 1 0 1 0 0 200.00 1 400.00 1 0 1 0 1 266.67 1 0 1 1 0 333.33 1 0 1 1 1 105.00 1 1 0 0 0 210.00 1 1 0 0 1 140.00 1 1 0 1 0 175.00 1 1 0 1 1 1 110.00 1 1 0 0 220.00 1 1 1 0 1 146.66 1 1 1 1 0 1 1 1 1 1 183.34 1236A—08/06/07 Features/Benefits: Programmable output frequency. Programmable asynchronous 3V66&PCI frequency. Programmable output divider ratios. Programmable output skew. Programmable spread percentage for EMI control. Watchdog timer technology to reset system if system malf...