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AV9248F-61 Datasheet

Part NameDescriptionManufacturer
AV9248F-61 Frequency Timing Generator for Pentium II Systems ICST
Integrated Circuit Systems ICST
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General Description
The ICS9248-61 is the Main clock solution for Notebook designs using the Intel 440BX style chipset.  Along with an SDRAM buffer such as the ICS9179-03, it provides all necessary clock signals for such a system.

 Features
Generates the following system clocks:
  - 2CPU(2.5V) up to 100MHz.
  - 7 PCI(3.3V) @ 33.3MHz (Includes one free running).
  - 2 REF clks Fixed (3.3V) 48MHz at 14.318MHz.
Skew characteristics:
   - CPU – CPU<175ps
   - PCI – PCI < 250ps
   - PCI_E (early) – PCI = 2.1ns
   - CPU(early) – PCI = 1.5ns – 4ns
Supports Spread Spectrum modulation for CPU and PCI clocks, 0.5% down spread
Efficient Power management scheme through stop clocks and power down modes.
Uses external 14.318MHz crystal, no external load cap required for CL=18pF crystal.
28 pin 209mil SSOP.

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