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Well, I ordered 3 new ones and some new watch crystals which arrived the other day and I measured the x1 & x2 pins and they also measured ~39pf, so, I guess by measuring between the x1 & x2 pins is inconclusive. The new watch crystals had a static capacitance of ~1pf, which was as per the...
thanks, what I will do is order some from a trusted supplier along with some watch crystals and then make some more investigations; I'll try a single board before I swap them all out. I did see something someone published online about reject ds1302's, apparently he wrote a bit of code to...
hi, i've got an issue with one or more ds1302 realtime clock chips and I wondered whether I could have some fake chips, these were all sourced at cheaper than standard prices on Ebay; the fault I have is the rtc will very infrequently freeze many hours after power-up, it will also...
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