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953002 - Block Diagram
953002 - Pinout


Programmable Timing Control Hub™ For Next GEN P4™ Processor

Alternative Products
NOTICE - The following device(s) are recommended alternatives:
Alternate for 953002CFLF/T

953002 is a 56-pin clock chip for P4 type processors with PCI-Express. The 953002 is part of a whole new line of ICS clock generators and buffers called TCH™ (Timing Control Hub). This part incorporates ICS's newest clock technology which offers more robust features and functionality. Employing the use of a serially programmable I2C interface, this device can adjust the output clocks by configuring the frequency setting, the output divider ratios, selecting the ideal spread percentage, the output skew, the output strength, and enabling/disabling each individual output clock. M/N control can configure output frequency with resolution up to 0.1MHz increment.


  • 2 - 0.7V current-mode differential CPU pairs
  • 1 - 0.7V current-mode differential CPU/PCI-Express selectable pair
  • 6 - PCI, 33MHz
  • 2 - REF, 14.318MHz
  • 3 - 3V66, 66.66MHz
  • 1 - 48MHz
  • 1 - 24/48MHz
  • 5 - PCI-Express 0.7V current mode differential pairs
  • CPU outputs cycle-cycle jitter < 85ps
  • 3V66 outputs cycle-cycle jitter < 250ps
  • PCI outputs cycle-cycle jitter < 500ps
  • Programmable output frequency.
  • Programmable asynchronous 3V66&PCI frequency.
  • Programmable asynchronous PCI-Express frequency.
  • Programmable output divider ratios.
  • Programmable output skew.
  • Programmable spread percentage for EMI control.
  • Watchdog timer technology to reset system if system malfunctions.
  • Programmable watch dog safe frequency.
  • Support I2C Index read/write and block read/write operations.
  • Uses external 14.318MHz reference input, external crystal load caps are required for frequency tuning.

Product Specification

Outputs (#)Output TypeOutput Freq Range (MHz)Input Freq (MHz)Output Banks (#)Core Voltage (V)Output Voltage (V)Chipset ManufacturerChipset Name
14.318000 - 400.00000014.31800083.33.3VIA

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
953002CFLFLast Time BuyPVG56SSOP56CYesTubeCheck Availability
953002CFLFTLast Time BuyPVG56SSOP56CYesReelCheck Availability
953002DFLFActivePVG56SSOP56CYesTubeCheck Availability
953002DFLFTActivePVG56SSOP56CYesReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
953002 Datasheet Datasheet PDF 286 KB Nov 19, 2009
PDN# : CQ-16-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 552 KB May 4, 2016
PCN# : A1506-02 Gold wire to Copper wire Product Change Notice PDF 35 KB Oct 8, 2015
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 24, 2013
PC Clocks Contact Info Misc PDF 62 KB May 29, 2007