This chip is an HEF4013BP, manufactured by NXF. It is a dual "D" type flip-flop with two completely separate circuits. For a complete data sheet, go to: http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CD4QFjAA&url=http%3A%2F%2Fwww.nxp.com%2Fdocuments%2Fdata_sheet%2FHEF4013B.pdf&ei=2i5RVKDpB9WoyASn04DICA&usg=AFQjCNGT0RmMOehxc_JNK7jDK5Liz3yTaw&bvm=bv.78597519,d.aWw . You may have to copy and paste the URL into your web browser.
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