Electronics > Projects, Designs, and Technical Stuff
28pin IDC / ribbon cable conectors do not exist?
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Yansi:
Hello,

just evaluating a possible project of ROM emulation, which requires to replace functionally a 28pin DIP IC.  I thought well, easy enough, I can use a flat ribbon cable PCB connector and stick it in instead of the original chip, then use a 28pin ribbon cable and terminate it in the other PCB using ... well a 28pin IDC socket.

Unfortunately it seems 28pin IDC sockets (either PCB or for the cable) like these do not exist, wtf?!  Or have I just not looked hard enough?

mikeselectricstuff:
So use a 34 pin one.
Yansi:
Wouldn't that look kind of .. lame? having a 34pin IDC connecter, while only 28 pins would be used? (On the other side, I could place there some signals "reserved for future use"..)

Or are there any other connector options for flat ribbon cables, that would play nicely with 28 pins?

Thanks
ejeffrey:
If it works and is easy and uses off the shelf components, do you care?
cdev:
Add more grounding and power if its needed. Space the grounds every few pins to reduce RFI.
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