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ICS9248-138 - Frequency Generator & Integrated Buffer

General Description

The ICS9248-138 is the single chip clock solution for designs using the 810/810E and Solano style chipset.

It provides all necessary clock signals for such a system.

Spread spectrum may be enabled through I2C programming.

Key Features

  • 2- CPUs @ 2.5V.
  • 9 - SDRAM @ 3.3V, including 1 free running.
  • 7 - PCICLK @ 3.3V.
  • 1 - IOAPIC @ 2.5V,.
  • 3 - 3V66MHz @ 3.3V.
  • 2 - 48MHz, @ 3.3V fixed.
  • 1 - 24/48MHz, @3.3V selectable by I2C.
  • 1 - REF @v3.3V, 14.318MHz. Features:.
  • Up to 200MHz frequency support.
  • Support FS0-FS4 strapping status bit for I2C read back.
  • Support power management: Through Power down Mode from I2C programming.
  • Spread.

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Datasheet Details

Part number ICS9248-138
Manufacturer Renesas
File Size 309.36 KB
Description Frequency Generator & Integrated Buffer
Datasheet download datasheet ICS9248-138 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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ICS9248-138 Frequency Generator & Integrated Buffers for Celeron & PII/IIITM Recommended Application: 810/810E and Solano type chipset. Output Features: • 2- CPUs @ 2.5V • 9 - SDRAM @ 3.3V, including 1 free running • 7 - PCICLK @ 3.3V • 1 - IOAPIC @ 2.5V, • 3 - 3V66MHz @ 3.3V • 2 - 48MHz, @ 3.3V fixed. • 1 - 24/48MHz, @3.3V selectable by I2C • 1 - REF @v3.3V, 14.318MHz. Features: • Up to 200MHz frequency support • Support FS0-FS4 strapping status bit for I2C read back. • Support power management: Through Power down Mode from I2C programming. • Spread spectrum for EMI control ( ± 0.25% center). • Uses external 14.