Is it no problem to propose SOIC(D) and HSOIC(DDA) package for new design?
I'm concerned about longevity and supply of this package.
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To follow up on our direct message, below are the newer alternatives for the list you provided. Please also note that our product page also provides recommendations for newer replacements that tend to have better supply.
For our policy on EOL and obsolescence, please see this page: https://www.ti.com/support-quality/quality-policies-procedures/product-life-cycle.html
TI does not obsolete out of convenience and we communicate all product changes like end-of-life products to customers.
Newer alternatives table for your reference:
|Requested Device||TI Newer Alternative(s)|
For LMH6643MAX/NOPB, SOIC(D) and LMH6672MRX/NOPB, HSOIC(DDA), these belong to the High Speed team so please create a separate thread to contact their team to ask for recommendations.
Please let me know if you have further questions.