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16bit TTL Family Tester

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fjpompeo

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Hello,

I work with maintenance of electronic printed circuit boards used in bearing systems (subway and train) and soldered on these boards there are many 16-bit TTL integrated circuits. I can replace everything and the repair is done, but doing this is going to take a lot of time and effort and I want to know which one is defective, so I want to test all these integrated circuits. To give you an idea of which one I'm talking about, here are some part numbers SN74LVCC3245, 74ABT16245, 74AHC138, 74ABT16374, 74ABT16540, 74ABT16541. I need to know which integrated circuit is defective to build a history to manage my inventory and reduce defect analysis time because there are some very expensive and hard to find parts.

I searched the internet and found a few manufacturers like Elnec (BeePro), Xegcu (TL866) and others, but none of them have 16-bit TTL integrated circuits in the parts list that can be tested or programmed. Thank you all.
 
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barry

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I don't know of any off-the-shelf system that can test multiple ICs in-circuit. Generally, these kinds of tests are performed by customized, expensive, test equipment, e.g., bed-of-nails testers.
 

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