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5T90533I - Block Diagram
5T90533I - Pinout


2.5V Single Data Rate 1:5 Clock Buffer Terabuffer™

Alternative Products
NOTICE - The following device(s) are recommended alternatives:

The 5T90533I 2.5V single data rate (SDR) clock buffer is a userselectable single-ended or differential input to five single-ended outputs buffer built on advanced metal CMOS technology. The SDR clock buffer fanout from a single or differential input to five single-ended outputs reduces the loading on the preceding driver and provides an efficient clock distribution network. The 5T90533I can act as a translator from a differential HSTL, eHSTL, 1.8V/2.5V LVTTL, LVEPECL, or single-ended 1.8V/2.5V LVTTL input to HSTL, eHSTL, 1.8V/2.5V LVTTL outputs. Selectable interface is controlled by 3-level input signals that may be hard-wired to appropriate high-mid-low levels. Multiple power and grounds reduce noise.


  • Guaranteed Low Skew < 25ps (max)
  • Very low duty cycle distortion
  • High speed propagation delay < 2.5ns. (max)
  • Up to 250MHz operation
  • Very low CMOS power levels
  • 1.5V VDDQ for HSTL interface
  • Hot insertable and over-voltage tolerant inputs
  • 3-level inputs for selectable interface
  • Selectable HSTL, eHSTL, 1.8V / 2.5V LVTTL, or LVEPECL input interface
  • Selectable differential or single-ended inputs and five singleended outputs
  • 2.5V VDD
  • Available in TSSOP package

Product Specification

Outputs (#)Output TypeOutput Freq Range (MHz)Input Freq (MHz)Inputs (#)Input TypeOutput Banks (#)Core Voltage (V)Output Voltage (V)Divider ValueOutput Skew (ps)Additive Phase Jitter Typ RMS (ps)
5eHSTL, HSTL0.000000 - 250.0000000.000000 - 250.0000001LVEPECL, eHSTL, HSTL12.51.5, 1.8, 2.525

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
5T90533PGGILast Time BuyPGG28TSSOP28IYesTubeCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
5T90533I Data Sheet Datasheet PDF 200 KB Nov 3, 2015
Apps Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB Jul 5, 2016
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB May 13, 2014
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 12, 2014
show all (11)
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 8, 2014
AN-836 Differential Input to Accept Single-ended Levels Application Note PDF 37 KB May 6, 2014
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB May 6, 2014
AN-835 Differential Input with VCMR being VIH Referenced Application Note PDF 77 KB May 6, 2014
AN-833 Differential Input Self Oscillation Prevention Application Note PDF 94 KB May 6, 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-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 15, 2014
PDN# : CQ-15-05 Market Declined Quarterly PDN Product Discontinuation Notice PDF 623 KB Oct 29, 2015
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