Integrated Circuit System ICS94235
Programmable System Clock Chip
| Part No. | ICS94235 |
|---|---|
| Datasheet | ICS94235 Download |
| Manufacturer |  Integrated Circuit System |
| Description | Programmable System Clock Chip |
| Buy | Stock & Price |
FEATURES
:● 1 - Differential pair open drain CPU clocks
● 1 - Single-ended open drain CPU clock
● 13 - SDRAM @ 3.3V
● 7 - PCI @ 3.3V
● 2 - AGP @ 3.3V
● 1 - 48MHz, @3.3V
● 1 - REF @ 3.3V, (selectable strength) through I2C
FEATURES
:● Programmable ouput frequency
● Programmable ouput rise/fall time
● Programmable CPU, SDRAM, PCI and AGP skew
● Real time system reset output
● Spread spectrum for EMI control typically by 7dB to 8dB, with programmable spread percentage
● Watchdog timer technology to reset system if over-clocking causes malfunction
● Uses external 14.318MHz crystal Skew Specifications:
● CPUT - CPUC: <250ps
● PCI - PCI: <500ps
● CPU - SDRAM: <350ps
● SDRAM - SDRAM: <250ps
● AGP - AGP: <250ps
● AGP - PCI: <750ps
● CPU - PCI: <3ns Pin Configuration RESET# *PD# GND X1 X2 AVDD **FS0/REF0 VDD **FS1/AGP0 AGP1 GND *FS2/PCICLK_F PCICLK0 PCICLK1 PCICLK2 GND VDD *MODE/PCICLK3 PCICLK4 PCICLK5 AVDD48 **FS3/48MHz GND 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...
