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CD4049UBMJ/883 - possible replacements
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:
Possible TI replacement parts:
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?
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The CD4049UBMJ/883 would be a device processed according to MIL-STD-883 Level B. That has been superseded by MIL-PRF-38535 QML Class Q. The orderable part number from TI is CD4049UBF3A.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.
From MIL-M-38510/56G: ...For this product, the requirements of MIL-M-38510 have been superseded by MIL-PRF-38535...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...
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