63701 MCUs - 'cheap' source?

Solder

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Over the years I've repaired a fair few Namco System 1 boards. Fairly often I find that the ROM board has a faulty '64A1' MCU - I had a small handful of 63701's that I programmed with the relevant code to replace the faulty originals. Now though I've run out of 63701's - can anyone recommend a supplier that has them reasonably priced please?

Thanks
 
I can usually dig 'em up on my parts scrounging trips but tend to stay away from them. Those chips come in a bajillion different part suffixes and configurations so it's tough to figure out which ones to buy and which ones to pass on.

Can you post the full part #s off the chips?

RJ
 
I can usually dig 'em up on my parts scrounging trips but tend to stay away from them. Those chips come in a bajillion different part suffixes and configurations so it's tough to figure out which ones to buy and which ones to pass on.

Can you post the full part #s off the chips?

RJ

Ta. I don't have any to hand right now, but I think the last one that I used was: HD63701V0P
 
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