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

The 621 is a low skew, single input to four output, clock buffer. The device operates from a single 1.2 to 1.8 volt supply and has a 3.3 volt tolerant input, making it ideal for level translation. IDT makes many non-PLL and PLL based low skew output devices as well as Zero Delay Buffers to synchronize clocks. Contact us for all of your clocking needs.

Features

  • Low skew outputs (150 ps)
  • Packaged in 8-pin SOIC or 8-pin DFN (2x2mm)
  • RoHS 5 or RoHS 6 (lead-free) package
  • Low power CMOS technology
  • Operating voltages of 1.2 V to 1.8 V
  • Output Enable pin tri-states outputs
  • 3.3 V tolerant input clock
  • Industrial or commercial temperature ranges

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
621MILF Last Time Buy DCG8 SOIC 8 I Yes Tube
Availability
621MILFT Last Time Buy DCG8 SOIC 8 I Yes Reel
Availability
621MLF Last Time Buy DCG8 SOIC 8 C Yes Tube
Availability
621MLFT Last Time Buy DCG8 SOIC 8 C Yes Reel
Availability
621NILFT Last Time Buy NBG8P1 VFQFPN 8 I Yes Reel
Availability
621NLFT Last Time Buy NBG8P1 VFQFPN 8 C Yes Reel
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
621 Datasheet Datasheet PDF 156 KB
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 322 KB
AN-845 Termination - LVCMOS Application Note PDF 146 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 170 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 495 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 442 KB
AN-834 Hot-Swap Recommendations Application Note PDF 153 KB
AN-815 Understanding Jitter Units Application Note PDF 565 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.15 MB
AN-805 Recommended Ferrite Beads Application Note PDF 121 KB
IDT Clock Buffers Offers Ultra Low Additive Phase Jitter Application Note PDF 1.28 MB
PCNs & PDNs
PDN# : TP-19-06 Manufacturing Discontinuance Notice Product Discontinuation Notice PDF 1016 KB
PCN# : A1602-01(R1) Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB
PCN# : A1602-01 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 611 KB
PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB
PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB
PCN# : A1403-03 Gold wire to Copper wire Product Change Notice PDF 42 KB
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB
Downloads
ICS621_1p8 IBIS Model Model - IBIS ZIP 7 KB
Other
Timing Solutions Products Overview Overview PDF 4.11 MB
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB
IDT Fanout Buffers Product Overview Product Brief PDF 739 KB
High-Performance, Low-Phase Noise Clocks Buffers product brief Product Brief PDF 378 KB

Boards & Kits