The 551 is a low cost, high-speed single input to four output clock buffer. Part of IDT's ClockBlocksTM family, this is our lowest cost, small clock buffer. See the 552-02B for monolithic dual version of the 551 in a 20 pin QSOP. IDT makes many non-PLL and PLL based low skew output devices as well as Zero Delay Buffers to synchronize clocks. Contact IDT for all of your clocking needs.

Features

  • Low skew (250 ps) outputs
  • Pb-free packaging
  • Low cost clock buffer
  • Packaged in 8-pin SOIC
  • Input/Output clock frequency up to 160 MHz
  • Non-inverting output clock
  • Ideal for networking clocks
  • Operating Voltages of 3.3 and 5.0 V
  • Output Enable mode tri-states outputs
  • Advanced, low power CMOS process
  • Commercial and industrial temperature versions

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
551MILF Active DCG8 SOIC 8 I Yes Tube
Availability
551MILFT Active DCG8 SOIC 8 I Yes Reel
Availability
551MLF Active DCG8 SOIC 8 C Yes Tube
Availability
551MLFT Active DCG8 SOIC 8 C Yes Reel
Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
551 Datasheet Datasheet PDF 190 KB
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB
AN-845 Termination - LVCMOS Application Note PDF 62 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB
AN-815 Understanding Jitter Units Application Note PDF 476 KB
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB
AN-804 IDT Clock Buffers Offer Low Additive Phase Jitter Application Note PDF 162 KB
IDT Clock Buffers Offers Ultra Low Additive Phase Jitter Application Note PDF 1 KB
PCNs & PDNs
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
PDN# : CQ-14-02R2 Product Discontinuation Notice PDF 549 KB
PDN# : CQ-14-02R1 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 545 KB
PDN# : CQ-14-02 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 544 KB
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB
PCN# : A1208-01R1 Gold to Copper Wire Product Change Notice PDF 254 KB
PCN# A-0607-06 MMT Thailand as Alternate Assembly Facility for PLCC, SOIC 150mil/300mil Product Change Notice PDF 223 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

Software & Tools

Title Other Languages Type Format File Size Date
551 3.3V IBIS Model Model - IBIS ZIP 4 KB