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Integrated Circuit Systems, Inc.
ICS952011
Programmable Timing Control Hub™ for P4™ processor
Recommended Application: SIS 645/645DX/648/650 style chipsets. Output Features: • 2 - Pairs of differential CPUCLKs (differential current mode) • 1 - SDRAM @ 3.3V • 9 - PCI @3.3V (including 2 free-running) • 2 - AGP @ 3.3V • 2 - ZCLKs @ 3.3V • 1- 12/48MHZ @ 3.3V • 1- 24/48MHz, @3.3V selectable by I2C • 3- REF @3.3V, 14.318MHz. Key Specifications: • PCI - PCI output skew: < 500ps • CPU - SDRAM output skew: < 1ns • AGP - AGP output skew: <150ps Features/Benefits: • Selectable asynchronous/synchronous AGP, ZCLK and PCI outputs • Supports DDR333 OEM frequencies • Programmable output frequency, divider ratios, output rise/falltime, output skew.