Programmable Timing Control Hub™ For P4™

The 950220 is a single chip clock solution for desktop designs using the Intel 845 chipset with PC133 or DDR memory. It provides all necessary clock signals for such a system. The 950220 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.

Features

  • 3 - Pairs of differential CPU clocks @ 3.3V
  • 3 - 3V66 @ 3.3V
  • 9 - PCI @ 3.3V
  • 2 - 48MHz @ 3.3V fixed
  • 1 - 24_48MHz @ 3.3V, 48MHz, 24Mhz or 66MHz
  • 1 - REF @ 3.3V, 14.318MHz
  • Programmable output frequency.
  • Programmable output divider ratios.
  • Programmable output rise/fall time.
  • 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 crystal.
  • CPU Output Jitter <150ps
  • 3V66 Output Jitter <250ps
  • CPU Output Skew <100ps

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
950220AFLFT Obsolete PVG48 SSOP 48 C Yes Reel Availability
950220AFLF Obsolete PVG48 SSOP 48 C Yes Tube Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
ics950220 Datasheet PDF 237 KB Mar 5, 2007
PCNs & PDNs
PDN# : K-13-01R2 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 125 KB Oct 2, 2013
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB Mar 23, 2013
PDN# : K-13-01R1 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 125 KB Feb 27, 2013
PDN# : K-13-01 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 122 KB Jan 15, 2013