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CY2291: Three-PLL General Purpose EPROM Programmable Clock Generator | Cypress Semiconductor

CY2291: Three-PLL General Purpose EPROM Programmable Clock Generator

Last Updated: 
Jun 19, 2017
Version: 
*K

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.