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ICS950227 - Programmable Timing Control Hub

General Description

PIN NUMBER 1, 8, 14, 19, 26, 32, 37, 46, 50 2 3 7, 6, 5 4, 9, 15, 20, 27, 31, 36, 41, 47 18, 17, 16, 13, 12,11, 10 24, 23, 22, 21 25 PIN NAME VDD X1 X2 TYPE PWR 3.3V power supply DESCRIPTION X2 Cr ystal 14.318MHz Cr ystal input Input X1 Cr ystal 14.318MHz Cr ystal output Output PCICLK_F (2:0) G

Key Features

  • 3 Differential CPU Clock Pairs @ 3.3V.
  • 7 PCI (3.3V) @ 33.3MHz.
  • 3 PCI_F (3.3V) @ 33.3MHz.
  • 1 USB (3.3V) @ 48MHz.
  • 1 DOT (3.3V) @ 48MHz.
  • 1 REF (3.3V) @ 14.318MHz.
  • 5 3V66 (3.3V) @ 66.6MHz.
  • 1 VCH/3V66 (3.3V) @ 48MHz or 66.6MHz Features/Benefits:.
  • Programmable output frequency.
  • Programmable output divider ratios.
  • Programmable output rise/fall time.
  • Programmable output skew.
  • Program.

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Datasheet Details

Part number ICS950227
Manufacturer Integrated Circuit Systems
File Size 128.48 KB
Description Programmable Timing Control Hub
Datasheet download datasheet ICS950227 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Integrated Circuit Systems, Inc. ICS950227 Programmable Timing Control Hub™ for P4™ Recommended Application: CK-408 clock Intel® 845 with P4 processor. Output Features: • 3 Differential CPU Clock Pairs @ 3.3V • 7 PCI (3.3V) @ 33.3MHz • 3 PCI_F (3.3V) @ 33.3MHz • 1 USB (3.3V) @ 48MHz • 1 DOT (3.3V) @ 48MHz • 1 REF (3.3V) @ 14.318MHz • 5 3V66 (3.3V) @ 66.6MHz • 1 VCH/3V66 (3.3V) @ 48MHz or 66.6MHz Features/Benefits: • 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.