Hello, it may seem a banal question, but as it's the first time I use an external oscillator (with integrated crystal), I am not sure. The datasheet makes no mention whatsoever to the need to use a bypass capacitor in the power line: https://global.kyocera.com/prdct/electro/product/pdf/clock_k_e.pdf But is this truly the case? Should I put a (100nF?) bypass capacitor anyway in your opinion? Space on the board may be used for something else otherwise, so I don't want to put useless components. But then again who does. Also, I guess there's no advantage in grounding the metalcase on this integrated oscillator, like I use to do with Xtals. Maybe it's already grounded but I haven't received it yet.. I ask in case it's not. Thank you. Kind regards, Mario --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .