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CD4049UBMJ/883 - possible replacements

Mary Beth Allen
Prodigy 20 points
Other Parts Discussed in Thread: CD4049UB-MIL, CD4018B

Please help me to understand the differences between the following parts.  I'm trying to pick the one closest to the obsolete P/N.  They all seem to be 16 pin CERDIP packages in the mil temp range :

Obsolete part National’s:

 CD4049UBMJ/883

 

Possible TI replacement parts:

CD4049UB-MIL

CD4049UBF3A

CD4049UBFB (M38510/05553BEA)

Also, I understand what MIL-STD-883 is but what did National mean by the suffix /883?  Has it actually had the testing or was it made on the same manufacturing line with the same processes as those that get the /883 testing?  

Thanks,

Mary Beth

  • 0
    TI__Expert 5570 points

    Hi Mary Beth,

     The CD4049UBMJ/883 would be a device processed according to MIL-STD-883 Level B.  That has been superseded by MIL-PRF-38535 QML Class Q.  The orderable part number from TI is CD4049UBF3A.  An explanation of the part nomenclature can be found at http://www.ti.com/pdfs/hirel/hirel_product_nomenclature.pdf on page 6.

    Let me know if you have any other questions.

  • 0 in reply to Richard Biddle
    Prodigy 20 points
    Thanks for your answer but now I have more questions on the CD4000 series CMOS parts and their suffixes if you could be so kind as to explain this some more.
     
    I'm looking at TI's website (link below) and trying to choose.  I see the distributor has some CD4018BF in stock.  I need to do some testing before I possibly make an engineering change and I need to understand how these four parts differ and I would like to know if I use the BF part for my testing then later specify the M38510 part number if my test results will be non-applicable.
     
     
    The four parts listed all seem to be 16 pin CERDIP packages (hence the F suffix) in the mil temp range.
    I am trying to use the TI acquired Harris logic part despriptions and if I am correctly interpreting them, the 3A suffix is tested on a MIL-PRF-38535 line and the 3B is tested on a MIL-M-38510 line.  What's the difference, is one better than the other? 
     
    Parts active on the TI website (CD4018-MIL):
    CD4018BF (only TI's testing?)
    CD4018BF3A (made on a MIL-PRF-38535 line?)
    JM38510/05652BEA
    M38510/05652BEA (and according to the DLA, theTI"s vender p/n is CD4018BFB so is that a MIL-M-38510 line?).
     
    Can you please explain the difference? and what is the order of "goodness" from good to best?

    From MIL-M-38510/56G:  ...For this product, the requirements of MIL-M-38510 have been superseded by MIL-PRF-38535... The device class is the product assurance level as defined in MIL-PRF-38535.

    From the Supplemental Information Sheet for Electronic QML-38535: ...The manufacturer has certified that the advanced microcircuits listed were/are being built, tested, and shipped, using the certified/qualified lines/flows, processes, and materials, and as defined by a ... MIL-M-38510 part number are in full compliance with MIL-PRF-38535...

     Thanks,

    Mary Beth