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ICS9248-98 - Frequency Generator & Integrated Buffer

Datasheet Summary

Description

PIN NUMBER 1 2 3,9,16,22, 33,39,45 4 PIN NAME VDD1 REF0 PCI_STOP#1 GND X1 5 6,14 7 8 X2 VDD2 PCICLK_F MODE1, 2 FS3 PCICLK0 13, 12, 11, 10 15 17, 18, 20, 21, 28, 29, 31, 32, 34, 35,37,38 19,30,36 23 24 PCICLK (4:1) BUFFER IN SDRAM (11:0) VDD3 SDATA SCLK TYPE PWR OUT IN DESCRIPTION REF, XTAL

Features

  • 2 - CPUs @2.5V, up to 166MHz.
  • 1 - IOAPIC @ 2.5V.
  • 13 - SDRAM @ 3.3V.
  • 6 - PCI @3.3V,.
  • 1 - 48MHz, @3.3V fixed.
  • 1 - 24MHz @ 3.3V.
  • 2 - REF @3.3V, 14.318MHz. Features:.
  • Up to 166MHz frequency support.
  • Support power management: PCI, CPU stop and Mode.
  • Spread spectrum for EMI control (0 to -0.5%, ± 0.25%).
  • Uses external 14.318MHz crystal Skew Specifications:.
  • CPU.
  • CPU:.

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Datasheet Details

Part number ICS9248-98
Manufacturer Renesas
File Size 335.18 KB
Description Frequency Generator & Integrated Buffer
Datasheet download datasheet ICS9248-98 Datasheet
Additional preview pages of the ICS9248-98 datasheet.

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Full PDF Text Transcription

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ICS9248-98 Frequency Generator & Integrated Buffers for Celeron & PII/III™ Recommended Application: 440BX/VIA Apollo 133 style chipset. Output Features: • 2 - CPUs @2.5V, up to 166MHz. • 1 - IOAPIC @ 2.5V • 13 - SDRAM @ 3.3V • 6 - PCI @3.3V, • 1 - 48MHz, @3.3V fixed. • 1 - 24MHz @ 3.3V • 2 - REF @3.3V, 14.318MHz. Features: • Up to 166MHz frequency support • Support power management: PCI, CPU stop and Mode • Spread spectrum for EMI control (0 to -0.5%, ± 0.25%). • Uses external 14.318MHz crystal Skew Specifications: • CPU – CPU: <175ps • SDRAM - SDRAM: <250ps • PCI – PCI: <500ps • BUFFER_IN-SDRAM: <5ns • CPU(early)-PCI: Min=1.0ns, Typ=2.3ns, Max=4.
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