In what year NES/famicom was copied?

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onimush
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In what year NES/famicom was copied?

Post by onimush » Fri Apr 13, 2018 7:47 am

I have PPU manufactured in 1988 ( UMC ua6541 ) and CPU from 1989 ( UMC ua6540 ) . They are both PAL and run NTSC games. Is it the earliest known clone?

lidnariq
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Re: In what year NES/famicom was copied?

Post by lidnariq » Fri Apr 13, 2018 10:16 am

Krzysiobal shared a picture of a UA6527P with a manufacture date of 1988 + week 47 here.

I wonder what changed between the UA6541 and the UA6538...

onimush
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Re: In what year NES/famicom was copied?

Post by onimush » Fri Apr 13, 2018 11:18 am

lidnariq wrote:I wonder what changed between the UA6541 and the UA6538...
Maybe they fixed this:

https://www.youtube.com/watch?v=IPP0q8fIYK0

MLX
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Re: In what year NES/famicom was copied?

Post by MLX » Fri Apr 13, 2018 12:08 pm

onimush wrote:I have PPU manufactured in 1988 ( UMC ua6541 ) and CPU from 1989 ( UMC ua6540 ) . They are both PAL and run NTSC games. Is it the earliest known clone?
According to this court case report, UMC announced their PPU in July 1987 and released it "a short time later".

But if you take a look at some clones released in Korea and Taiwan, the oldest all seems to be from 1988. The Bit Creator 70, which seems to be one of the very first famiclone, used 1988 UMC chips. Only pics i've seen of it were for a PAL variant, so maybe an elder, NTSC model exist (this is, I believe, the only clone that had a microphone on the 2nd controller). Supposedly there may have been a BIT Corp clone using more standard parts (and featured things like a decimal mode), but it's unseen so far.

onimush
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Re: In what year NES/famicom was copied?

Post by onimush » Sun May 06, 2018 7:37 am

So UA6540+UA6541 is PAL NES clone ?
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Eugene.S
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Re: In what year NES/famicom was copied?

Post by Eugene.S » Sun May 06, 2018 11:30 am

Yes, seems it have true PAL timing:
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dendy_timing.png (1.33 KiB) Viewed 5646 times
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