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94241 - Block Diagram
94241 - Pinout


Programmable TCH™ For Differential PIII™ Processor

The 94241 is a single chip timing control hub for desktop designs using VIA PL133-T style chipset with Intel differential PIII processor. It provides all necessary clock signals for such a system. The 94241 is part of a whole new line of ICS clock generators and buffers called TCH™ (Timing Control Hub). ICS is the first to introduce a whole product line which offers full programmability and flexibility on a single clock device. This part incorporates ICS's newest clock technology which 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. TCH also incorporates ICS's Watchdog Timer technology in having a frequency reset feature to provide a safe setting under unstable system conditions.


  • 2 - CPUs @2.5V
  • 13 - SDRAM @ 3.3V
  • 7 - PCI @3.3V,
  • 1 - 48MHz, @3.3V
  • 1 - 24MHz @ 3.3V
  • 2 - REF @3.3V, 14.318MHz.
  • Programmable ouput frequency
  • Programmable ouput rise/fall time
  • Programmable output to output skew
  • Programmable spread spectrum for EMI control
  • Real time system reset output
  • Watchdog timer technology to reset system if over-clocking causes malfunction
  • Uses external 14.318MHz crystal
  • CPU - CPU: <175ps
  • SDRAM - SDRAM: <500ps
  • PCI - PCI: <500ps
  • CPU-SDRAM: <500ps
  • CPU(early)-PCI: Min=1.0ns, Typ=2.0ns, Max=4.0ns

Product Specification

Outputs (#)Output TypeOutput Freq Range (MHz)Input Freq (MHz)Output Banks (#)Core Voltage (V)Output Voltage (V)Chipset ManufacturerChipset Name
14.318000 - 230.00000014.31800063.32.5, 3.3VIA

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
94241AFLFTObsoletePVG48SSOP48CYesReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
94241 Datasheet Datasheet PDF 144 KB Mar 24, 2006
PDN# : K-13-01R2 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 125 KB Oct 3, 2013
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 24, 2013
PDN# : K-13-01R1 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 125 KB Feb 28, 2013
show all (4)
PDN# : K-13-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 122 KB Jan 16, 2013