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Topic: Due DS1307 circuit. (Read 623 times) previous topic - next topic

cowasaki

I've just done this on Eagle and will build it tomorrow as I'm off to work shortly.

Might be useful to other people. 


Markus_L811


I've just done this on Eagle and will build it tomorrow as I'm off to work shortly.

Might be useful to other people. 




Did you take a look at this http://ics.nxp.com/support/documents/interface/pdf/an97055.pdf for Levelshifting with MOS-Fet's can save some Resistors and space.

cowasaki

#2
May 22, 2013, 07:24 pm Last Edit: May 22, 2013, 07:28 pm by cowasaki Reason: 1


I've just done this on Eagle and will build it tomorrow as I'm off to work shortly.

Might be useful to other people.



Did you take a look at this http://ics.nxp.com/support/documents/interface/pdf/an97055.pdf for Levelshifting with MOS-Fet's can save some Resistors and space.


To be honest I haven't but simple transistors and resistors are dirt cheap so might be cheaper with these. I will look at the alternative though. I want to add IR IN, PS2 keyboard and real time clock to a 40 pin TFT shield plus maybe an IR output. With all those it might well work out easier to use a level shift IC in the end.

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