DS1087LU-466+

Overview

The DS1087LU-466+ is a factory-programmed 3.3V spread-spectrum clock generator producing a square-wave output at 66.6MHz with 4% dither. It operates within a 2.7V to 3.6V supply range and features an internal master oscillator. The device includes a user-accessible programmable divider, nonvolatile EEPROM for settings storage, and a 2-wire serial interface. Control pins allow for glitchless output enable and power-down modes, making it suitable for EMI reduction in standalone or processor-controlled applications.

Feature Summary

• Factory programmed 66.6MHz output frequency with 4% spread-spectrum dither
• Operates on a single 2.7V to 3.6V supply voltage
• Includes nonvolatile EEPROM for storing configuration settings
• Features 2-wire serial interface for register programming

Applications

• Printers
• Copiers
• PCs
• Computer Peripherals
• Cell Phones

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and environmental compliance status. Confirm availability through authorized distributors as stock levels fluctuate. Ensure the component meets the required temperature range specifications for the intended application environment before procurement.

Selection Notes

Select this model when a fixed 66.6MHz clock signal with 4% spectral spreading is required for EMI mitigation. The device supports external control via OE and PDN pins for power management. Verify that the 8-pin uSOP package fits the PCB layout constraints. Ensure the system design accommodates the 2-wire interface requirements if dynamic reconfiguration is needed.

Part Context

This component belongs to the DS1087L EconOscillator family, which provides spread-spectrum clock generation without external timing components. The 'LU' designation indicates the industrial temperature range (-40°C to +85°C) and the specific package style. The '+4CL' suffix typically denotes lead-free packaging and tape-and-reel shipping options within the product line.

Replacement Considerations

Direct replacements within the same series include DS1087LU-266+ for a 2% dither variant at the same frequency. Other frequencies in the DS1087LU series may serve as alternatives if different clock rates are acceptable. Verify pin compatibility and electrical characteristics before substituting.