ICS94211
Features
:
- 2
- CPUs @2.5V
- 1
- IOAPIC @ 2.5V
- 13
- SDRAM @ 3.3V
- 6
- PCI @3.3V,
- 1
- 48MHz, @3.3V
- 1
- 24MHz @ 3.3V
- 2
- REF @3.3V, 14.318MHz. Features
:
- Programmable ouput frequency.
- Programmable ouput rise/fall time.
- Programmable PCICLK, PCICLK_F, SDRAM 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.
- FS pins for frequency select Key Specifications:
- CPU
- CPU: <175ps
- SDRAM
- SDRAM: <500ps
- PCI
- PCI: <500ps
- CPU(early)-PCI: Min=1.0ns, Typ=2.0ns, Max=4.0ns
Pin Configuration
VDDREF
- PCI_STOP/REF0 GND X1 X2 VDDPCI
- MODE/PCICLK_F
- - FS3/PCICLK0 GND PCICLK1 PCICLK2 PCICLK3 PCICLK4 VDDPCI BUFFER_IN GND SDRAM12 SDRAM11 VDDSDR SDRAM10 SDRAM9 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...
