MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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 True USB Willem Programmer (GQ-2X, GQ-3X, GQ-4X)
 16f690 adapter?

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davesaudio2 Posted - 09/14/2016 : 09:52:29
To program a 16F690 DIP it implies an adapter is needed/
Does this make sense? I don't see such adapters
3   L A T E S T    R E P L I E S    (Newest First)
ZLM Posted - 09/15/2016 : 19:48:14
This DIP chip shares same programming pin out with DIP 8. Here is whats going on:

Image Insert:

162456 bytes


In order to be programmed, the chip first 8 pins must keep same location as DIP 8. However, there are two pins can not fit into the ZIF. See two arrows in red. The chip is too long.

The chip can be programmed if you can bent the last two pins to flat. OR drill two small holes on the ZIF, OR even cut off last two pins. :-) not a joke!

Sure you can make a customized adapter for this chip. Just mapping the first 8 pins to the ZIF programmer socket.
davesaudio2 Posted - 09/15/2016 : 03:52:17
confused
I have adapters for PLCC etc.
The GQ-4X has a 40 pin ZIF already, what does the adapter do?
It programs 40 pin chips natively what is the purpose of the adapter?
anniel Posted - 09/15/2016 : 03:31:51
http://www.mcumall.com/comersus/store/comersus_viewItem.asp?idProduct=3108

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