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ICS952702 Datasheet(PDF) 1 Page - Integrated Circuit Systems |
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ICS952702 Datasheet(HTML) 1 Page - Integrated Circuit Systems |
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1 / 17 page  Integrated Circuit Systems, Inc. ICS952702 0795D—05/06/05 Pin Configuration Recommended Application: SiS746/746FX style chipset Output Features: • 1 - Pair of differential open drain CPU outputs • 1 - Single-ended open drain CPU output • 8 - PCICLK @ 3.3V including 2 PCI clock free running • 2 - AGPCLK @ 3.3V • 3 - REF @ 3.3V • 2 - ZCLK @ 3.3V • 2 - IOAPIC @ 2.5V • 1 - 12_48MHz @ 3.3V • 1 - 24_48MHz @ 3.3V Key Specifications: • CPU Output Jitter <250ps • AGP Output Jitter <250ps • ZCLK Output Jitter <250ps • PCI Output Jitter <500ps • CPU-AGP/PCI/ZCLK skew: 2.5ns~3.5ns Programmable Timing Control Hub for K7TM System Functionality Features/Benefits: • Selectable synchronous/asynchronous AGP/PCI frequency • Programmable output frequency. • Programmable output divider ratios. • Programmable output rise/fall time. • Programmable output skew. • Programmable spread percentage for EMI control. • Watchdog timer technology 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 reference or XTAL input. Bit4 Bit3 Bit2 Bit1 Bit0 CPU ZCLK AGP PCI FS4 FS3 FS2 FS1 FS0 MHz MHz MHz MHz 00000 200.00 133.33 66.67 33.33 00001 200.99 133.99 67.00 33.50 00010 200.00 66.67 66.67 33.33 00011 206.00 137.33 68.67 34.33 00100 133.33 133.33 66.67 33.33 00101 214.00 142.66 71.33 35.67 00110 218.00 145.33 72.67 36.33 00111 222.00 148.00 74.00 37.00 01000 100.00 133.33 66.67 33.33 01001 100.99 134.65 67.33 33.66 01010 100.00 66.67 66.67 33.33 01011 103.00 137.33 68.67 34.33 01100 100.00 133.33 66.67 33.33 01101 107.00 142.66 71.33 35.67 01110 109.00 145.33 72.67 36.33 01111 111.00 148.00 74.00 37.00 10000 166.67 133.33 66.67 33.33 10001 166.99 133.59 66.80 33.40 10010 166.67 66.67 66.67 33.33 10011 171.67 137.33 68.67 34.33 10100 175.00 140.00 70.00 35.00 10101 178.34 142.66 71.33 35.67 10110 181.67 145.33 72.67 36.33 10111 185.00 148.00 74.00 37.00 11000 133.33 133.33 66.67 33.33 11001 133.99 133.99 67.00 33.50 11010 133.33 66.67 66.67 33.33 11011 137.33 137.33 68.67 34.33 11100 140.00 140.00 70.00 35.00 11101 142.66 142.66 71.33 35.67 11110 145.33 145.33 72.67 36.33 11111 148.00 148.00 74.00 37.00 VDDREF 1 48 VDDLAPIC **FS0/REF0 2 47 IOAPIC1 **FS1/REF1 3 46 IOAPIC0 **FS4/REF2 4 45 GNDAPIC GNDREF 5 44 CPU_STOP#* X1 6 43 CPUCLKODT1 X2 7 42 RESET# GNDZ 8 41 GNDCPU ZCLK0 9 40 CPUCLKODT0 ZCLK1 10 39 CPUCLKODC0 VDDZ 11 38 VDDCPU *PCI_STOP# 12 37 AGND VDDPCI 13 36 AVDD **FS2/PCICLK_F0 14 35 SCLK *FS3/PCICLK_F1 15 34 SDATA PCICLK0 16 33 PD#* PCICLK1 17 32 GNDAGP GNDPCI 18 31 AGPCLK0 VDDPCI 19 30 AGPCLK1 PCICLK2 20 29 VDDAGP PCICLK3 21 28 AVDD48 PCICLK4 22 27 12_48MHz/SEL12#_48MHz* PCICLK5 23 26 24_48MHz/SEL24#_48MHz** GNDPCI 24 25 GND48 48-SSOP * Internal Pull-Up Resistor ** Internal Pull-Down Resistor |
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