Features
    Three integrated phase-locked loops
    EPROM programmability
    Factory-programmable (CY2291) or field-programmable
    (CY2291F) device options
    Low-skew, low-jitter, high-accuracy outputs
    Power-management options (Shutdown, OE, Suspend)
    Frequency select option
    Smooth slewing on CPUCLK
    Configurable 3.3V or 5V operation
    20-pin SOIC Package

Benefits
    Generates up to 3 custom frequencies from external sources
    Easy customization and fast turnaround
    Programming support available for all opportunities
    Meets critical industry standard timing requirements
    Supports low-power applications
    8 user-selectable frequencies on CPU PLL
    Allows downstream PLLs to stay locked on CPUCLK output
    Enables application compatibility
    Industry-standard packaging saves on board space