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Part Number
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ICS9248-157 |
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Manufacturer
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Integrated Circuit Systems |
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Description
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Frequency Generator & Integrated Buffers |
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Published
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Oct 7, 2005 |
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Detailed Description
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Integrated Circuit Systems, Inc.
ICS9248-157
Frequency Timing Generator for Pentium II Systems
Recommended Application...
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Datasheet
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ICS9248-157
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Overview
Integrated Circuit Systems, Inc.
ICS9248-157
Frequency Timing Generator for Pentium II Systems
Recommended Application: ALI1621/1632M style chipsets Output Features: • 2 - CPUs @2.
5V, up to 140MHz.
• 7 - PCI @3.
3V, (including one free running) • 1 - 48MHz, @3.
3V fixed.
• 2 - REF @3.
3V, 14.
318MHz.
Features: • Up to 140 MHz frequency support • Support power management: CPU, PCI stop and Power down.
• Spread spectrum for EMI control (0.
5% down spread).
• Uses external 14.
318MHz crystal • FS pins for frequency select Key Specifications: • CPU – CPU: 175ps • PCI – PCI: 250ps • CPU(early)-PCI: 1.
5ns - 4ns • PCI_E (early) - PCI: 2.
1ns
Pin Configuration
*FS1/REF0 X1 X2 **FS2/PCICLK_F *SEL_CPUF#...
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