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Old 10th Aug 2018, 1:25 pm   #74
Slothie
Octode
 
Join Date: Apr 2018
Location: Newbury, Berkshire, UK.
Posts: 1,287
Default Re: MK14 schematic revisions

I paid about £29 for 4 chips from an eBay seller in the USA (almost half of that was postage...) There are part factors that advertise in various places and the price you quote is typical of them.
There is a part IM65X61 which turns up cheaper from time to time that is pin compatible and usually much cheaper, but requires you use one of the spare gates to generate chip select during write cycles, so you'd have to modify your design. I put a jumper on my board to select one or the other depending on availability. I haven't tried it yet so I cant guarantee it will work!
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