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Integrated Circuit Systems, Inc.
ICS9147-16
Frequency Generator & Integrated Buffers for PENTIUMTM
General Description
The ICS9147-16 generates all clocks required for high speed RISC or CISC microprocessor systems such as Intel PentiumPro. Two different reference frequency multiplying factors are externally selectable with smooth frequency transitions. Glitch-free Stop clock control is provided for CPU and BUS clocks. Complete chip low current mode is achieved with the Power Down# pin. High drive BUS 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 and IOAPIC clock outputs typically provide better than 0.5V/ns slew rates.
ICS9147-16 Datasheet
