Integrated Circuit Systems ICS9250-19
Frequency Generator & Integrated Buffers
| Part No. | ICS9250-19 |
|---|---|
| Datasheet | ICS9250-19 Download |
| Manufacturer |  Integrated Circuit Systems |
| Description | Frequency Generator & Integrated Buffers |
| Buy | Stock & Price |
FEATURES
:● 3 - CPUs @2.5V, up to 150MHz.
● 17 - SDRAM @ 3.3V, up to 150MHz.
● 7 - PCI @3.3V
● 2 - IOAPIC @ 2.5V
● 1 - 48MHz, @3.3V fixed.
● 1 - 24MHz @ 3.3V
● 2 - REF @3.3V, 14.318MHz.
FEATURES
:● Up to 150MHz frequency support
● Support power management: CPU, PCI, stop and Power down Mode form I2C programming.
● Spread spectrum for EMI control (0 to -0.5%, ± 0.25%).
● Uses external 14.318MHz crystal Key Specifications:
● CPU – CPU: <175ps
● CPU – PCI: 1 - 4ns
● PCI – PCI: <500ps
● SDRAM - SDRAM: <250ps Pin Configuration 56-Pin SSOP Block Diagram * Internal Pull-up Resistor of 240K to 3.3V on indicated inputs ** Internal Pull-down resistor of 240K to GND on indicated inputs. Functionality FS3 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 FS2 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 FS1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 FS0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 CPU (MHz) 133 124 150 140 105 110 115 120 100.0 133 112 103 66.6 83.3 75 124 PCICLK (MHz) 33.3 (CPU/4) 31 (CPU/4) 37.5 (CPU/4) 35 (CPU/4) 35 (CPU/3) 36.67 (C...
