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6V40277 - Block Diagram
6V40277 - Pinout


Serially Programmable Clock Source for Freescale Systems


The IDT6V40277 is a small, versatile serially programmable clock source for Freescale systems. It can generate any frequency from 6 to 200 MHz and have a second configurable output. The outputs can be reprogrammed on the fly and will lock to a new frequency in 10 ms or less. Smooth transitions (in which the clock duty cycle remains near 50%) are guaranteed if the output divider is not changed. The device includes a PDTS pin which tri-states the output clocks  and powers down the entire chip. The IDT6V40277 features a default clock output at start-up. This product is intended for clock generation. It has low output jitter (variation in the output period), but input to output skew and jitter are not defined nor guaranteed.


  • Packaged in 16-pin DCG (150 mil wide SOIC) – Pb-free, RoHS compliant 
  • Highly accurate frequency generation 
  • Serially programmable: user determines the output frequency via a 3 wire interface 
  • Eliminates need for custom quartz 
  •  Input crystal frequency of 5 - 27 MHz
  • Output clock frequencies up to 200 MHz 
  • Power down tri-state mode
  • Very low jitter
  • Operating voltage of 3.3 V or 5 V
  • 25 mA drive capability at TTL levels
  • Industrial temperature operating range (-40°C to +85°C)

Product Specification

Outputs (#)Output SignalingOutput Freq Range (MHz)Input Freq (MHz)Inputs (#)Core Voltage (V)Clock Spec.
2LVTTL6.000000 - 200.00000025.00000013.3, 5

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
6V40277DCGIObsoleteDCG16SOIC16IYesTubeCheck Availability
6V40277DCGI8ObsoleteDCG16SOIC16IYesReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
IDT6V40277_freescale Datasheet Datasheet PDF 132 KB Apr 19, 2013
Apps Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB Jul 5, 2016
AN-831 The Crystal Load curve Application Note PDF 308 KB Sep 22, 2014
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB May 13, 2014
show all (17)
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 12, 2014
AN-803 Crystal Timing Budget and Accuracy for IDT Timing Clock Products Application Note PDF 44 KB May 8, 2014
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 8, 2014
AN-839 RMS Phase Jitter Application Note PDF 149 KB May 7, 2014
AN-838 Peak-to-Peak Jitter Calculations Application Note PDF 32 KB May 7, 2014
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB May 6, 2014
AN-832 Timing Budget and Accuracy Application Note PDF 48 KB May 6, 2014
AN-830 Quartz Crystal Drive Level Application Note PDF 59 KB May 5, 2014
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB Apr 24, 2014
AN-815 Understanding Jitter Units Application Note PDF 476 KB Apr 24, 2014
AN-802 Crystal-Measuring Oscillator Negative Resistance Application Note PDF 52 KB Mar 12, 2014
AN-806 Power Supply Noise Rejection Application Note PDF 353 KB Jan 15, 2014
AN-801 Crystal-High Drive Level Application Note PDF 109 KB Jan 15, 2014
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 15, 2014
PDN# : CQ-14-06R1 Revised Product Discontinuance Notice Product Discontinuation Notice PDF 407 KB Sep 8, 2014
PDN# : CQ-14-06 MANUFACTURING DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 192 KB Sep 4, 2014