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ICS9248-112 Datasheet(PDF) 2 Page - Integrated Circuit Systems

Part # ICS9248-112
Description  Frequency Generator & Integrated Buffers for Celeron & PII/III?
PDF  12 Pages
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Manufacturer  ICST [Integrated Circuit Systems]
Direct Link  http://www.icst.com
Logo ICST - Integrated Circuit Systems

ICS9248-112 Datasheet(HTML) 2 Page - Integrated Circuit Systems

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ICS9248-112
Preliminary Product Preview
Third party brands and names are the property of their respective owners.
General Description
Pin Configuration
Power Groups
GNDREF, VDDREF = REF0, X1, X2
GNDPCI , VDDPCI = PCICLK [9:0]
GNDSDR, VDDSDR = SDRAM [7:0], SDRAM_F,
supply for PLL core
GND3V66,VDD3V66=3V66
GND48 , VDD48 = 48MHz, 24_48MHz,
VDDLAPIC = IOAPIC
GNDLCPU , VDDLCPU = CPUCLK [1:0]
The ICS9248-112 is the single chip clock solution for designs
using the 810/810E style chipset. It provides all necessary
clock signals for such a system.
Spread spectrum may be enabled through I2C programming.
Spread spectrum typically reduces system EMI by 8dB to
10dB. This simplifies EMI qualification without resorting to
board design iterations or costly shielding. The ICS9248-112
employs a proprietary closed loop design, which tightly
controls the percentage of spreading over process and
temperature variations.
Serial programming I2C interface allows changing functions,
stop clock programming and frequency selection.
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