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2309NZ - Block Diagram
2309NZ - Pinout


Nine Output 3.3V Clock Buffer

The IDT2309NZ is a low-cost buffer designed to distribute high-speed clocks in mobile PC systems and desktop PC systems with SDRAM support. This part has nine outputs, eight of which can be used to drive two DIMMs or four SO-DIMMs, and the remaining can be used for external feedback to a PLL. The IDT2309NZ operates at 3.3V and outputs can run up to 133.33MHz The IDT2309NZ is designed for low EMI and power optimization. It has multiple VDD and VSS pins for noise optimization and consumes less than 32mA at 66.6MHz, making it ideal for the low power requirements of mobile systems.


  • One input to nine output buffer/driver
  • Supports two DIMMs or four SO-DIMMs with one additional output for feedback to an external or chipset PLL
  • Low power consumption for mobile applications: less than 32mA at 66.6MHz with unloaded outputs
  • 8.7ns input-output delay
  • Buffers all frequencies from DC to 133.33MHz
  • Output-output skew < 250ps
  • Multiple VDD and VSS pins for noise and EMI reduction
  • 3.3V operation
  • High drive capability
  • Available in SOIC and TSSOP packages

Product Specification

Outputs (#)Output TypeOutput Freq Range (MHz)Inputs (#)Input TypeOutput Voltage (V)Output Skew (ps)
9LVCMOS0.000000 - 133.3300001LVCMOS3.3250

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
2309NZ-1HDCGActiveDCG16SOIC16CYesTubeCheck Availability
2309NZ-1HDCG8ActiveDCG16SOIC16CYesReelCheck Availability
2309NZ-1HDCGIActiveDCG16SOIC16IYesTubeCheck Availability
2309NZ-1HDCGI8ActiveDCG16SOIC16IYesReelCheck Availability
2309NZ-1HPGGActivePGG16TSSOP16CYesTubeCheck Availability
2309NZ-1HPGG8ActivePGG16TSSOP16CYesReelCheck Availability
2309NZ-1HPGGIActivePGG16TSSOP16IYesTubeCheck Availability
2309NZ-1HPGGI8ActivePGG16TSSOP16IYesReelCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
2309NZ Datasheet Datasheet PDF 122 KB Feb 2, 2012
Apps Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB Jul 5, 2016
AN-845 Termination - LVCMOS Application Note PDF 62 KB May 13, 2014
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB May 13, 2014
show all (10)
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 12, 2014
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 8, 2014
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB May 6, 2014
AN-815 Understanding Jitter Units Application Note PDF 476 KB Apr 24, 2014
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB Apr 24, 2014
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 15, 2014
IDT Clock Buffers Offers Ultra Low Additive Phase Jitter Application Note PDF 1 KB Oct 20, 2008
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Apr 14, 2016
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB Feb 15, 2016
PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB Jan 28, 2016
show all (17)
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB Nov 13, 2015
PCN# : TB1403-01 Changed in Carrier Tape, Plastic Reel and Quantity per Reel on TSSOP-14, TSSOP-16 Product Change Notice PDF 663 KB Apr 8, 2014
PCN# : A1208-01R1 Gold to Copper Wire Product Change Notice PDF 254 KB Dec 21, 2012
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 14, 2012
PCN# A-0607-06 MMT Thailand as Alternate Assembly Facility for PLCC, SOIC 150mil/300mil Product Change Notice PDF 223 KB Oct 6, 2006
PCN# : A-0605-05 AIT as Alternate Assembly Facility for SOIC/QSOP/SSOP/TSSOP/PDIP Product Change Notice PDF 298 KB May 25, 2006
PCN# A-0508-02: OSET Alternate Assembly Location for Green Product Change Notice PDF 18 KB Sep 2, 2005
PCN#: TB-0504-01, Transfer Test & Backend from IDT-Manila to IDT Product Change Notice PDF 35 KB Apr 29, 2005
PCN # L-0501-03 Die Revision Change from CD/CD4 to Z Product Change Notice PDF 156 KB Feb 4, 2005
PCN#: A-0412-04 - To comply with Pb-free labels - Green Products Product Change Notice PDF 80 KB Dec 14, 2004
PCN # A-0406-07Rev.1, Qualify OSE-Taiwan for SSOP & TSSOP Product Change Notice PDF 21 KB Oct 22, 2004
PCN#:A-0401-01, new m/c G600 & 8290 d/a material Product Change Notice PDF 196 KB Jan 19, 2004
PCN#: A-0310-01, Green Products Product Change Notice PDF 26 KB Oct 10, 2003
PCN#: G-0303-04, new m/c G700 & 8290 d/a material Product Change Notice PDF 130 KB Apr 14, 2003
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB Apr 28, 2016
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 25, 2016

Software & Tools

Title Type Format File Size Datesort icon
2309NZ Hspice Model Model - HSPICE ZIP 45 KB Apr 25, 2003
2309NZ IBIS Model Model - IBIS ZIP 11 KB Apr 25, 2003