| Part Number | ICS9248-78 |
| Manufacturer | Integrated Circuit Systems |
| Title | Frequency Generator & Integrated Buffers |
| Description | The ICS9248-78 is a single chip clock for Intel Pentium II. It provides all necessary clock signals for such a system. Spread spectrum may be enab... |
| Features |
Generates the following system clocks: - 2 - CPUs @ 2.5V, up to 150MHz. - 1 - IOAPIC @ 2.5V, PCI/2MHz. - 9 SDRAMs (3.3V), up to150MHz. -2 - 3V66 @ 3.3V, 2x PCIMHz. - 8 - PCIs @ 3.3V. - 1 - 48MHz, @ 3.3V fixed. - 2 - REF @ 3.3V, 14.318Hz. - 1 - 24MHz, @ 3.3V fixed. Supports spread spectrum modulati... |
| Datasheet | ICS9248-78 pdf datasheet |
| Part Number | ICS9248-77 |
| Manufacturer | Renesas |
| Title | Frequency Timing Generator |
| Description | The ICS9248-77 is a main clock synthesizer chip for Pentium II based systems using Rambus Interface DRAMs. This chip provides all the clocks requi. |
| Features |
Generates the following system clocks:
- 3 - CPUs @ 2.5V, up to 150MHz. - 3 - IOAPIC @ 2.5V, PCI or PCI/2 - 3 - 3V66MHz @ 3.3V. - 11 - PCIs @ 3.3V. - 1 - 48MHz, @ 3.3V fixed. - 1 - 24MHz, @ 3.3V fixed. - 1 - CPU/2, @ 2.5V.
± .25% center spread, or 0 to -.5% down spread. Uses external 14.318MHz. |
| Datasheet | ICS9248-77 pdf datasheet |
| Part Number | ICS9248-77 |
| Manufacturer | Integrated Circuit Systems |
| Title | Frequency Generator & Integrated Buffers |
| Description | The ICS9248-77 is a main clock synthesizer chip for Pentium II based systems using Rambus Interface DRAMs. This chip provides all the clocks requi. |
| Features |
Generates the following system clocks: - 3 - CPUs @ 2.5V, up to 150MHz. - 3 - IOAPIC @ 2.5V, PCI or PCI/2 - 3 - 3V66MHz @ 3.3V. - 11 - PCIs @ 3.3V. - 1 - 48MHz, @ 3.3V fixed. - 1 - 24MHz, @ 3.3V fixed. - 1 - CPU/2, @ 2.5V. ± .25% center spread, or 0 to -.5% down spread. Uses external 14.318MHz cry. |
| Datasheet | ICS9248-77 pdf datasheet |
| Part Number | ICS9248-73 |
| Manufacturer | Integrated Circuit Systems |
| Title | Frequency Generator & Integrated Buffers |
| Description | The ICS9248-73 is a single chip clock for Intel Pentium II. It provides all necessary clock signals for such a system. Spread spectrum may be enab. |
| Features |
Generates the following system clocks: - 2 - CPUs @ 2.5V , up to 150MHz. - 1 - IOAPIC @ 2.5V, PCI/2MHz. - 9 - SDRAMs @ 3.3V, up to 150MHz. - 2 - 3V66 @ 3.3V, 2x PCI MHz. - 8 - PCIs @ 3.3V. - 2 - 48MHz, @ 3.3V fixed. - 1 - REF @ 3.3V, 14.318MHz. - 1 - 24_48MHz, @ 3.3V fixed. Supports spread spectru. |
| Datasheet | ICS9248-73 pdf datasheet |
| Part Number | ICS9248-72 |
| Manufacturer | Integrated Circuit Systems |
| Title | Frequency Generator & Integrated Buffers |
| Description | The ICS9248-72 is a main clock synthesizer chip for Pentium II based systems using Rambus Interface DRAMs. This chip provides all the clocks requi. |
| Features |
Up to 200MHz frequency support. Power Down feature. Spread Spectrum for EMI control (0 to 0.5% down spread , + 0.25% center spread) I2C interface. VDDL=2.5V,VDD=3.3V CPU Output Jitter: <250ps CPU/2 Output Jitter. <250ps IOAPIC Output Jitter: <500ps 48MHz, 3V66, PCI. |
| Datasheet | ICS9248-72 pdf datasheet |
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