ICS9248-141 Datasheet | Integrated Circuit Systems

Integrated Circuit Systems, Inc. - K7™ System Clock Chip Remended Application: VIA KX133 style chipset Output Features : - 1 - Differential pair open drain CPU clocks - 1 - Single-ended open drain CPU clock - 13 - SDRAM @ 3.3V - 6 - PCI @3.3V, - 1 - 48MHz, @3.3V fixed. - 1 - 24/48MHz @ 3.3V - 2 - REF @3.3V, 14.318MHz. Features : - Up to 166MHz frequency support - Support power management: CPU stop and Power down Mode from I2C programming. - Spread spectrum for EMI control (± 0.25% center spread). - Uses external 14.318MHz crystal Pin Configuration VDDREF REF0/CPU_STOP#- GND X1 X2 VDDPCI - MODE/PCICLK_F - FS3/PCICLK0 GND - SEL24_48#/PCICLK1 PCICLK2 PCICLK3 PCICLK4 VDDPCI BUFFER IN GND SDRAM11 SDRAM10 VDDSDR SDRAM9 SDRAM8 GND SDATA SCLK 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 REF1/FS2- GND CPUCLKT1 GND CPUCLKC0 CPUCLKT0 VDDA PD#- SDRAM_OUT GND SDRAM0 SDRAM1 VDDSDR SDRAM2 SDRAM3 GND SDRAM4 SDRAM5 VDDSDR SDRAM6 SDRAM7 VDD48 48MHz/FS0- 24/48MHz/FS1- 48-Pin 300mil SSOP - Internal Pull-up Resistor of 120K to...