Not recommended for new designs. Please use 74FCT388915T instead.


  • 0.5 MICRON CMOS Technology
  • Input frequency range: 10MHz – f2Q Max. spec (FREQ_SEL = HIGH)
  • Max. output frequency: 133MHz
  • Pin and function compatible with MC88915
  • Five non-inverting outputs, one inverting output, one 2x output, one ÷2 output
  • all outputs are TTL-compatible
  • Output Skew < 500ps (max.)
  • Duty cycle distortion < 500ps (max.)
  • Part-to-part skew: 0.55ns (from tPD max. spec)
  • 64/–15mA drive at TTL output voltage levels
  • Available in PLCC and SSOP packages
  • Not Recommended for New Design

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
74FCT88915TTAJG Obsolete PLG28 PLCC 28 C Yes Tube
74FCT88915TTAPYG Obsolete PYG28 SSOP 28 C Yes Tube
74FCT88915TTBJG Obsolete PLG28 PLCC 28 C Yes Tube
74FCT88915TTBJG8 Obsolete PLG28 PLCC 28 C Yes Reel
74FCT88915TTCJG Obsolete PLG28 PLCC 28 C Yes Tube
74FCT88915TTCJG8 Obsolete PLG28 PLCC 28 C Yes Reel
74FCT88915TTCPYG Obsolete PYG28 SSOP 28 C Yes Tube
74FCT88915TTDJG Obsolete PLG28 PLCC 28 C Yes Tube
74FCT88915TTDPYG Obsolete PYG28 SSOP 28 C Yes Tube

Technical Documentation

Title Other Languages Type Format File Size Date
Application 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 12, 2014
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB May 11, 2014
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB May 7, 2014
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB May 5, 2014
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB Apr 23, 2014
AN-815 Understanding Jitter Units Application Note PDF 476 KB Apr 23, 2014
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB Jan 14, 2014
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 13, 2012
PDN# : N-12-14 PRODUCT DISCONTINUANCE NOTICE ON SELECTIVE DEVICE Product Discontinuation Notice PDF 69 KB Sep 24, 2012
PCN# A-0607-06 MMT Thailand as Alternate Assembly Facility for PLCC, SOIC 150mil/300mil Product Change Notice PDF 223 KB Oct 5, 2006
PCN#: TB-0512-01 Reel Color Changed from Blue to Black Product Change Notice PDF 729 KB Dec 15, 2005
PCN# A-0508-02: OSET Alternate Assembly Location for Green Product Change Notice PDF 18 KB Sep 1, 2005
PCN#: TB-0504-01, Transfer Test & Backend from IDT-Manila to IDT Product Change Notice PDF 35 KB Apr 28, 2005
PCN # L0203-09R2 Addendum Fab Transfer from Fab 2 to Fab 4 Product Change Notice PDF 101 KB Aug 15, 2004
PCN#:A-0312-02, new die attach material - 8290 Product Change Notice PDF 116 KB Dec 2, 2003
PCN#:A-0312-01, new mold compound material - G600 Product Change Notice PDF 109 KB Dec 2, 2003
PCN#: A-0310-01, Green Products Product Change Notice PDF 26 KB Oct 9, 2003
PCN#: A-0309-04, new mold compound G600 material Product Change Notice PDF 134 KB Oct 6, 2003
PCN# L0203-09R1 Tech Upgrade & Fab Transfer Product Change Notice PDF 98 KB May 28, 2003
PCN# G-0203-05 Mold Compound Product Change Notice PDF 40 KB Apr 15, 2002
PCN# G0106-01, Moisture Sensitive Label Change Product Change Notice PDF 274 KB Jun 10, 2001
PCN# G9911-05, To qualify low alpha mold compound. Product Change Notice PDF 44 KB Nov 17, 1999
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 24, 2016