Avarges-RU Posted March 11, 2010 Posted March 11, 2010 I build PIC based core know. And i don't find in shop HC49U-S crystal, but TK strong recommend to use only "parallel cut" crystal with PIC18F and manager in the shop can't answer is there HC49S (not U-S) is parallel cut or not ? Can i use that crystal ? I have downloaded datasheet and there is nothing about serial/parallel cut. Please help !
Janis1279 Posted March 11, 2010 Posted March 11, 2010 (edited) I build PIC based core know. And i don't find in shop HC49U-S crystal, but TK strong recommend to use only "parallel cut" crystal with PIC18F and manager in the shop can't answer is there HC49S (not U-S) is parallel cut or not ? Can i use that crystal ? I have downloaded datasheet and there is nothing about serial/parallel cut. Please help ! I could be wrong. But HC49S characterizes only low profile package of quartz crystal and it is right "parallel cut" crystal. http://www.cresttech...u/pdf/HC49S.pdf Janis Edited March 11, 2010 by Janis1279
Altitude Posted March 12, 2010 Posted March 12, 2010 the HC49S is just the case, it can be parallel or series cut. You need to find out for sure which it is since series cut wont work
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