CY2291SC-197

Clock Generators, PLLs, Frequency Synthesizers Overview

The CY2291SC-197 is a three-phase-locked loop (PLL) general-purpose EPROM programmable clock generator manufactured by Cypress Semiconductor. This device generates up to three custom frequencies from external sources, featuring low-skew, low-jitter, and high-accuracy outputs. It supports configurable 3.3V or 5V operation and includes power-management options such as shutdown, output enable, and suspend modes. The component is housed in a standard 20-pin SOIC package, designed to meet critical industry-standard timing requirements for embedded systems.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Three integrated phase-locked loops for generating multiple clock signals
• EPROM programmability allowing for factory-programmable or field-programmable configurations
• Low-skew, low-jitter, and high-accuracy output characteristics
• Configurable 3.3V or 5V operation with power-management features including shutdown and suspend modes

Clock Generators, PLLs, Frequency Synthesizers Applications

• Embedded processor and controller clock generation
• Systems requiring precise timing synchronization across multiple components
• Industrial equipment needing customizable frequency outputs

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix 'SC-197' against official Cypress/Infineon documentation to confirm pinout compatibility and voltage levels. Ensure that the EPROM programming requirements are met during integration, as this is a programmable device rather than a fixed-frequency oscillator. Cross-reference with Infineon's current portfolio listings to confirm continued support status.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when multiple distinct clock frequencies are required from a single source with low jitter specifications. Consider the EPROM programmability if design flexibility for frequency customization is needed post-manufacturing. Verify that the 20-pin SOIC package fits the board layout constraints and that the operating voltage range matches the system's power supply rails.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The CY2291 series belongs to Cypress Semiconductor's family of programmable clock generators. Cypress Semiconductor has been acquired by Infineon Technologies, which continues to offer these products under its portfolio. The CY2291SC-197 variant specifically utilizes EPROM technology for configuration, distinguishing it from OTP or volatile programmable alternatives in the same family.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements may include other CY2291 variants such as CY2291F or CY2291FI, depending on whether field-programmable or factory-programmable options are preferred. Verify pin-to-pin compatibility and electrical specifications before substituting.