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ICS9148B-04 Datasheet(PDF) 3 Page - Integrated Circuit Systems |
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ICS9148B-04 Datasheet(HTML) 3 Page - Integrated Circuit Systems |
3 / 14 page 3 ICS9148B-04 Functionality VDD1,2,3 = 3.3V±5%, VDDL1,2 = 2.5V±5% or 3.3±5%, TA=0 to 70°C Crystal (X1, X2) = 14.31818MHz CPU3.3#_2.5 Input level (Latched Data) Buffer Selected for operation at: 12.5V VDD 03.3V VDD CPU 3.3#_2.5V Buffer selector for CPUCLK and IOAPIC drivers. Power Management Functionality FS2 FS1 FS0 CPU, SDRAM(MHz) PCICLK (MHz) REF, IOAPIC (MHz) 0 0 0 50.0 25.0 (1/2 CPU) 14.318 0 0 1 75.0 32 14.318 0 1 0 83.3 41.65 (1/2 CPU) 14.318 0 1 1 68.5 34.25 (1/2 CPU) 14.318 1 0 0 83.3 33.3 14.318 1 0 1 75.0 37.5 (1/2 CPU) 14.318 1 1 0 60.0 30.0 (1/2 CPU) 14.318 1 1 1 66.8 33.4 (1/2 CPU) 14.318 Mode Pin - Power Management Input Control MODE, Pin 25 (Latched Input) Pin 46 Pin 15 0 CPU_STOP# (INPUT) PCI_STOP# (INPUT) 1 REF1 (OUTPUT) PCICLK5 (OUTPUT) CPU_STOP# PCI_STOP# CPUCLK Outputs PCICLK (0:5) PCICLK_F, REF, 24/48MHz and SDRAM Crystal OSC VCO 0 1 Stopped Low Running Running Running Running 1 1 Running Running Running Running Running 1 0 Running Stopped Low Running Running Running |
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