ICS94225
ICS94225 is AMD-K7TM System Clock Chip manufactured by Integrated Circuit Solution.
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Integrated Circuit Systems, Inc.
AMD-K7TM System Clock Chip
Remended Application: AMD 750/760 style chipset Output Features
:
- 3 differential pair open drain CPU clocks (1.5V external pull-up; up to 150MHz achieviable through I2C)
- 2
- AGPCLK @ 3.3V
- 8
- PCI @3.3V, including 1 free running
- 1
- 48MHz @ 3.3V
- 1
- 24/48MHz @ 3.3V
- 2- REF @3.3V, 14.318MHz. Features
:
- Programmable ouput frequency
- Programmable ouput rise/fall time
- Programmable group skew
- Real time system reset output
- Spread spectrum for EMI control typically by 7d B to 8d B, with programmable spread percentage
- Watchdog timer technology to reset system if over-clocking causes malfunction
- Uses external 14.318MHz crystal
- - FS0/REF0
- - FS1/REF1 GNDREF X1 X2 GNDPCI PCICLK_F PCICLK0 VDDPCI PCICLK1 PCICLK2 GNDPCI PCICLK3 PCICLK4 VDDPCI PCICLK5 PCICLK6 VDDAGP AGP0 AGP1 GNDAGP VDD48 48MHz SEL24_48#/24-48MHz
Pin Configuration
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 VDDREF GNDSD SDRAM_OUT VDDSD RESERVED CPUCLKC2 CPUCLKT2 GNDCPU CPUCLKC1 CPUCLKT1 GND CPUCLKC0 CPUCLKT0 RESET# VDD GND PCI_STOP# CPU_STOP# PD# SPREAD# FS2- SDATA SCLK GND48
48-Pin 300mil SSOP
- Internal 120K pullup resistor on indicated inputs
- - Internal 240K pullup resistor on indicated...
