ICS950403

Integrated Circuit Systems, Inc. ICS950403 Advance Information AMD - K8™ System Clock Chip Recommended Application: AMD K8 System Clock with AMD, VIA or ALI Chipset Pin Configuration Output Features: 2 - Differential pair push-pull CPU clocks @ 3.3V 9 - PCICLK (Including 1 free running) @ 3.3V 3 - Selectable PCICLK/HTTCLK @ 3.3V 1 - HTTCLK @ 3.3V 1 - 48MHz @ 3.3V fixed. 1 - 24/48MHz @ 3.3V 3 - REF @ 3.3V, 14.318MHz. Features: Programmable output frequency. Programmable output divider ratios. Programmable output rise/fall time. Programmable output skew. Programmable spread percentage for EMI control. Watchdog timer technology and RESET# output to reset system if system malfunctions. Programmable watch dog safe frequency. Support I2C Index read/write and block read/ write operations. Uses external 14.318MHz crystal. Supports Hyper Transport Technology (HTTCLK). *FS0/REF0 1 48 REF1/FS1* VDDREF 2 47 GND X1 3 46 VDDREF X2 4 45 REF2/FS2* GND 5 44 Reset# ~*ModeA/HTTCLK0 6 43 VDDA ~*ModeB/PCICLK7/HTTCLK1 7 42 GND ~PCICLK8/HTTCLK2 8 41 CPUCLK8T0 VDDPCI 9 40 CPUCLK8C0 GND 10 39 GND ICS950403 ~PCICLK9/HTTCLK3 11 38 VDDCPU PCICLK10 12 37 CPUCLK8T1 PCICLK0 13 36 CPUCLK8C1 PCICLK1 14 35 VDDCPU GND 15 34 GND VDDPCI 16 33 GND ~PCICLK2 17 32 PD#* ~PCICLK3 18 31 48MHz/FS3** VDDPCI 19 30 GND GND 20 29 AVDD48 PCICLK4 21 28 24_48MHz/Sel24_48#*~ PCICLK5 22 27 GND ~PCICLK_F 23 26 SDATA ~PCICLK6 24 25 SCLK 48-SS...