Datasheet Details
| Part number | ICS9147-14 |
|---|---|
| Manufacturer | Integrated Circuit Systems |
| File Size | 495.49 KB |
| Description | Frequency Generator & Integrated Buffers |
| Datasheet |
 ICS9147-14 Datasheet
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Description
The ICS9147-14 generates all clocks required for high speed RISC or CISC microprocessor systems such as Intel PentiumPro.
Two bidirectional I/O pins (FS1,FS2) are latched at power-on to the functionality table, with FS0 selectable in real-time to toggle between conditions.
Features
- High drive PCICLK and SDRAM outputs typically provide greater than 1 V/ns slew rate into 30 pF loads. CPU outputs typically provide better than 1V/ns slew rate into 20 pF loads while maintaining 50 ± 5% duty cycle. The REF clock outputs typically provide better than 0.5V/ns slew rates. Seperate buffers supply pins VDDL1 allow for 3.3V or reduced voltage swing (from 2.9 to 2.5V) for CPU (0:3) and IOAPIC outputs. Block Diagram Four copies of CPU clock Twelve SDRAM (3.3V TTL), usable asAGP clock.