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Electronics => Beginners => Topic started by: miker7940 on April 01, 2016, 12:44:26 pm

Title: Finding a replacement for an outdated obsolete component
Post by: miker7940 on April 01, 2016, 12:44:26 pm
Hi everyone
Wondering what people do to replace an obsolete component from old schematics

the component in question is a AM29F016D / AM29F032D FLASH 16/32 Mbit SMD SO44
If anyone knows a more up to date version of this component, please say
Title: Re: Finding a replacement for an outdated obsolete component
Post by: daqq on April 01, 2016, 12:51:39 pm
The SO44 package is a problem, otherwise it should be a generic 29F016/032, such as http://sk.farnell.com/micron/m29w320dt70n6e/flash-top-block-32mb-smd-29w320/dp/1099698?ost=29f032&selectedCategoryId=&isexcsku=false&categoryName=V%C5%A1etky+kateg%C3%B3rie&categoryNameResp=V%25C5%25A1etky%2Bkateg%25C3%25B3rie&rpsku=M29F032D70N6E (http://sk.farnell.com/micron/m29w320dt70n6e/flash-top-block-32mb-smd-29w320/dp/1099698?ost=29f032&selectedCategoryId=&isexcsku=false&categoryName=V%C5%A1etky+kateg%C3%B3rie&categoryNameResp=V%25C5%25A1etky%2Bkateg%25C3%25B3rie&rpsku=M29F032D70N6E) .
Title: Re: Finding a replacement for an outdated obsolete component
Post by: miker7940 on April 01, 2016, 12:54:27 pm
Quote from: daqq on April 01, 2016, 12:51:39 pm
The SO44 package is a problem, otherwise it should be a generic 29F016/032, such as http://sk.farnell.com/micron/m29w320dt70n6e/flash-top-block-32mb-smd-29w320/dp/1099698?ost=29f032&selectedCategoryId=&isexcsku=false&categoryName=V%C5%A1etky+kateg%C3%B3rie&categoryNameResp=V%25C5%25A1etky%2Bkateg%25C3%25B3rie&rpsku=M29F032D70N6E (http://sk.farnell.com/micron/m29w320dt70n6e/flash-top-block-32mb-smd-29w320/dp/1099698?ost=29f032&selectedCategoryId=&isexcsku=false&categoryName=V%C5%A1etky+kateg%C3%B3rie&categoryNameResp=V%25C5%25A1etky%2Bkateg%25C3%25B3rie&rpsku=M29F032D70N6E) .

I can change the package - just as long as they have the same pins (different places is fine though) Thanks for the link. I'll take a look now,

Okay, I have had a look and as I expected they have many different pins. And the schematic uses almost all of them on the existing chip.

If you've got any suggestions I would be happy to hear them:)
Title: Re: Finding a replacement for an outdated obsolete component
Post by: daqq on April 01, 2016, 06:34:40 pm
Also, be wary of the voltage levels. The part I linked is for 3.3V usage.
Title: Re: Finding a replacement for an outdated obsolete component
Post by: miker7940 on April 02, 2016, 12:41:42 am
Quote from: edavid on April 01, 2016, 04:09:59 pm
Just buy them on eBay... very common parts.
I need about 100 of them. And they really aren't very common parts...
Title: Re: Finding a replacement for an outdated obsolete component
Post by: dacman on April 02, 2016, 01:00:18 am
Although you're (apparently) not in the US, I'd suggest an obsolete parts source, such as 4starelectronics.com or americanmicrosemi.com.  Just look for an obsolete semiconductor distributor or an obsolete electronic parts distributor.