ICS9248-107
ICS9248-107 is Frequency Generator & Integrated Buffers manufactured by Integrated Circuit Systems.
Integrated Circuit Systems, Inc.
Frequency Timing Generator for PENTIUM II Systems
Remended Application: RCC chipset Output Features
:
- 4
- CPUs @ 2.5V, up to 180MHz.
- 3
- IOAPIC @ 2.5V
- 3
- 3V66MHz @ 3.3V.
- 11
- PCIs @ 3.3V
- 1
- 48MHz, @ 3.3V fixed
- 1
- 24/48MHz, @ 3.3V Features
:
- Up to 180MHz frequency support
- -
- -
- Use a zero delay buffer such as the ICS9179-06 to generate SDRAM clocks. Support power management: Power down Mode from I2C programming. Spread spectrum for EMI control ± 0.25% center spread). Uses external 14.318MHz crystal 5
- FS pins for frequency select
Pin Configuration
GNDREF REF0
- SEL24_48#/REF1 VDDREF X1 X2 GNDPCI
- FS0/PCICLK_F
- FS1/PCICLK1 VDDPCI
- FS2/PCICLK2
- FS3/PCICLK3 GNDPCI PCICLK4 PCICLK5 VDDPCI PCICLK6 PCICLK7 GNDPCI PCICLK8 PCICLK9 PCICLK10 VDDPCI PD# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 VDDLAPIC IOAPIC0 IOAPIC1 GNDLAPIC IOAPIC2 VDDLCPU CPUCLK0 GNDLCPU CPUCLK1 VDDLCPU CPUCLK2 CPUCLK3 GNDLCPU VDD66 3V66_0 3V66_1 3V66_2 GND66 SDATA 2 I C...
