ICS9250-12 Datasheet (Integrated Circuit Systems) - Frequency Generator & Integrated Buffers

ICS9250-12, Frequency Generator & Integrated Buffers

The ICS9250-12 is a main clock synthesizer chip for Pentium II based systems using Rambus Interface DRAMs.

This chip provides all the clocks required for such a system when used with a Direct Rambus Clock Generator (DRCG) chip such as the ICS9212-01, 02, 03 and a PCI buffer 9112-17.

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ICS9250-12 Features

* Generates the following system clocks: - 4 CPU clocks ( 2.5V, 100/133MHz) - 8 PCI clocks, including 1 free-running (3.3V, 33MHz) - 2 CPU/2 clocks (2.5V, 50/66MHz) - 3 IOAPIC clocks (2.5V, 16.67MHz) - 4 Fixed frequency 66MHz clocks(3.3V, 66MHz) - 2 REF clocks(3.3V, 14.318MHz) - 1 USB clock (3.3V, 4