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ICS9248-128 - Frequency Generator & Integrated Buffer

Datasheet Summary

Description

Pin number 1 21,2 3,9,16,22, 27,33,39 4 5 6,14 71,2 81,2 13, 12, 11, 10 15,28,29,31,32, 34,35,37,38 Pin name V DDR/X REF0 M ode GND X1 X2 V DDP CI FS1 PCICLK_F PCICLK 0 FS2 P CICLK (4:1) SDRAM 12, S DRAM (7:0) SDRAM 11 Type P ower Output Input D escription Is olated 3.3 V power for crys tal & r

Features

  • - 3 CPU @ 2.5V/3.3V up to 133.3 MHz.
  • - 6 PCI @ 3.3V (including 1 free-running).
  • - 13 SDRAMs @ 3.3V up to 133.3MHz.
  • - 3 REF @ 3.3V, 14.318MHz.
  • - 1 clock @ 24/14.3 MHz selectable output for SIO.
  • - 1 Fixed clock at 48MHz (3.3V).
  • - 1 IOAPIC @ 2.5V / 3.3V Features:.
  • Up to 133MHz frequency support.
  • Support power management: CPU, PCI, SDRAM stop and Power down Mode from I2C programming.
  • Spread spectrum for EM.

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Datasheet preview – ICS9248-128

Datasheet Details

Part number ICS9248-128
Manufacturer Renesas
File Size 477.62 KB
Description Frequency Generator & Integrated Buffer
Datasheet download datasheet ICS9248-128 Datasheet
Additional preview pages of the ICS9248-128 datasheet.

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Full PDF Text Transcription

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Integrated Circuit Systems, Inc. ICS9248-128 Frequency Generator & Integrated Buffers Recommended Application: SIS 530/620 style chipset Output Features: • - 3 CPU @ 2.5V/3.3V up to 133.3 MHz. • - 6 PCI @ 3.3V (including 1 free-running) • - 13 SDRAMs @ 3.3V up to 133.3MHz. • - 3 REF @ 3.3V, 14.318MHz • - 1 clock @ 24/14.3 MHz selectable output for SIO • - 1 Fixed clock at 48MHz (3.3V) • - 1 IOAPIC @ 2.5V / 3.3V Features: • Up to 133MHz frequency support • Support power management: CPU, PCI, SDRAM stop and Power down Mode from I2C programming. • Spread spectrum for EMI control ( ± 0.25% center spread & 0 to -0.5% down spread). • Uses external 14.
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