Three-PLL General Purpose EPROM Programmable Clock Generator
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 3.3 V or 5 V operation
-
20-pin SOIC Package
Functional Description
The CY2291 is a third-generation family of clock generators. The CY2291 is upwardly compatible with the industry standard ICD2023 and ICD2028 and continues their tradition by providing a high level of customizable features to meet the diverse clock synchoronous systems.
All parts provide a highly configurable set of close for PC motherboard applications. Each of four configurable clock outputs (CLKA-CLKD) can be assigned 1 of 30 frequencies in any combination. Multiple outputs configured for the same or related[3] frequencies have low (<500 ps) skew, in effect providing on-chip buffering for heavily loaded signals.
|