So this chip on my NES controller has gone bad HD14021BP (datasheet http://pdf1.alldatasheet.com/datashe.../HD14021B.html)
Now I can get the same exact one from aliexpress but it'll take weeks and there a few £.
Found this 4021 on cpc for 40p, my only concern is the frequency http://cpc.farnell.com/nxp/hef4021bp...15v/dp/SC08655
Anyone able to provide any info on whether the frequencies need to directly match?
Now I can get the same exact one from aliexpress but it'll take weeks and there a few £.
Found this 4021 on cpc for 40p, my only concern is the frequency http://cpc.farnell.com/nxp/hef4021bp...15v/dp/SC08655
Anyone able to provide any info on whether the frequencies need to directly match?
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